ï»¿ Laboratory Events | Brookhaven National Laboratory

#### General Information

March 2014
Sunday Monday Tuesday Wednesday Thursday Friday Saturday

1

1. 8 am, Berkner Hall Auditorium

Hosted by: Cathy Osiecki

2

1. There are no events scheduled at this time.

3

1. 1:30 pm, Seminar Room, Bldg. 725

Hosted by: Oleg Tchoubar

In this talk I will present a newly developed software framework for multiphysics simulations of charged particle beam dynamics, synchrotron radiation and free electron laser radiation. The following practical applications will be discussed: * Prediction of radiation properties at the European XFEL. * Nonlinear dynamics studies in synchrotrons, influence of insertion devices on dynamic aperture, using the example of PETRAIII. * Potential of a longitudinally focusing insertion for short bunches and free electron lasing in a synchrotron.

2. 2 pm, Physics, Bldg. 510, Room 2-160

Hosted by: Elke Aschenauer

The dijet cross-section measurement in proton-proton collisions at a $\sqrt{s} =$ 500 GeV is measured with a data sample of 8.7 pb$^{-1}$ collected by the STAR detector during the 2009 RHIC run. The dijet cross-section is measured as a function of the dijet invariant mass $M_{ij}$ in the range of $30 \le M_{ij} \le 152$ GeV. The measurement lies within the mid-rapidity region with a maximum rapidity range $|y|_{max} \le 0.8$. This result shows agreement with theoretical next-to-leading order pQCD calculations, motivating the use of dijet asymmetries at STAR to further constrain the shape of $\Delta g(x)$.

4

1. 11 am, Small Seminar Room, Bldg. 510

Hosted by: Peter Steinberg

In relativistic heavy-ion collisions a hot, dense medium of strongly interacting quarks and gluons, called the Quark Gluon Plasma (QGP), is formed.Ã‚ Ã‚ One of the main goals of jet measurements is to study how the medium modifies the fragmentation of hard scattered partons.Ã‚ The measurement of the jet production cross-section and jet shapes in different colliding systems: pp, p-Pb, and Pb-Pb, allows for the determination of jets in QCD vacuum, in cold nuclear matter and in a QGP.Ã‚ The two reference measurements will allow a determination of the parton show modification due to the hot partonic matter.Ã‚ Cold nuclear matter (CNM) effects could modify the cross-section or fragmentation relative to pp, which would need to be understood in order to interpret the measurement of the modification in hot nuclear matter. In order to fully understand the modification of the parton fragmentation function, it is important that the underlying event background and its fluctuations is well understood for all colliding systems.Ã‚ A measurement of hadron-jet distributions allows us to subtract the large combinatorial background in heavy-ion collisions in a model-independent way, which can allow for a wider range of jet resolution parameters to be used.Ã‚ I will present recent ALICE results on jet production, jet kT and hadron+jet correlations in pp, p-Pb and Pb-Pb collisions and discuss their sensitivity to a modified jet fragmentation function.Ã‚ I will compare these measurements to similar measurements in STAR and PHENIX, as the medium modification should depend on the system size as well as the path-length.

2. 11 am, CFN, Bldg. 735, Seminar Room, 2nd fl.

Hosted by: Charles Black and Antonio Checco

Center for Functional Nanomaterials Seminar Cas Smith and Erika Hansen Terrapin Bright Green NYSERDA FUNDING FOR BIOMIMICRY INFORMATION SESSION Tuesday, March 4, 2014 11:00 a.m. Bldg. 735 ï¿½ï¿½" Seminar Room, 2nd fl. New York State Energy Research and Development Authority (NYSERDA) is helping New York State become a leading hub of biomimicry. Academic researchers are developing innovative technologies inspired by functions in nature, and forward-thinking businesses are discovering the market advantage that can be gained from mimicking nature's efficient designs. With NYSERDA's support, Terrapin Bright Green and Biomimicry 3.8 are building a biomimicry network in New York State comprising researchers, industry, and public and private funding streams. Our team would like to identify nascent and established projects at Brookhaven that may be eligible for NYSERDA funding. During our information session on March 4th, we will also describe the range of biomimetic R&D taking place in the State and how academic researchers and industry can apply for NYSERDA funds. Following the talk, we will be happy to continue the conversation over lunch in the BNL Cafeteria. Host: Charles Black and Antonio Checco Joann Tesoriero Center for Functional Nanomaterials Bldg. 735 Upton, NY 11973 Tel: (631) 344-7791 Fax: (631) 344-7769 Tesoriero@bnl.gov

3. 12:15 pm, Large Conference Room, Bldg. 490

Hosted by: michael Thorn

On Site Weight Watchers Meetings!! Getting started with Weight Watchers is now Simpler then ever with Simple Start. Come on in and learn about our straight forward do-able 2 week started plan with delicious meal ideas and a great new app to get you started losing weight and on the path to long term success. Weight Watchers today at 12:15 in the Conference Room #490. If you are not already a member check out a meeting for free and hear all about Simple Start! Take advantage of the convenience of On-Site weekly meetings every Tuesday. Time for a new beginning.

4. 5:30 pm, Brookhaven Center

Hosted by: Association of Students & Postdocs (ASAP)

5

1. 10 am, Berkner Lower Level

2. 10 am, Recreation Hall, Bldg. 317

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

3. 12 pm, Berkner Hall, Room B

This lecture will provide information on balance, ways of testing your balance and how to improve your balance. Individuals with poor balance are at risks for falls. This lecture will provide information on balance, testing and ways to improve your balance, which will prevent falls and injuries.

6

1. 12:30 pm, Physics, Building 510, Room 2-160

Hosted by: Tomomi Ishikawa

Strongly correlated fermionic system is one of the important topic in condensed matter physics, and appears in various contexts. Since important physical contributions drastically changes by energy scales, it provides rich examples of phase transitions and of crossovers. In order for unbiased and systematic studies of many-body fermions, we review aspects of fermionic functional renormalization group (f-FRG). We mainly discuss its application to ultracold atomic gases, and show how it describes the BCS-BEC crossover.

2. 2 pm, Large Seminar Room, Bldg. 510

Hosted by: Peter Petreczky

Sound was first recorded and reproduced by Thomas Edison in 1877. Until about 1950, when magnetic tape use became common, most recordings were made on mechanical media such as wax, foil, shellac, lacquer, and plastic. Some of these older recordings contain material of great historical interest, may be in obsolete formats, and are damaged, decaying, or are now considered too delicate to play. Unlike print and latent image scanning, the playback of mechanical sound carriers has been an inherently invasive process. Recently, a series of techniques, based upon non-contact optical metrology and image processing, have been applied to create and analyze high resolution digital surface profiles of these materials. Numerical methods may be used to emulate the stylus motion through such a profile in order to reconstruct the recorded sound. This approach, and current results, including studies of some of the earliest known sound recordings, are the focus of this talk and will be illustrated with sounds and images.

3. 3:30 pm, Small Seminar Room, Bldg. 510

Hosted by: Ketevi Assamagan

Observations and theoretical considerations motivate experimental searches for a "dark" or "hidden" sector of particles and fields that are beyond the standard model of particle physics. Two examples of the large variety of searches - those using photons and the newly discovered SM-like Higgs boson ï¿½ï¿½" will be presented.

4. 4 pm, Bldg. 911B, Large Conf. Rm., Rm. A202

"The first stage of a multi-stage, experimental program designed to understand multipacting in a superconducting niobium 1/2-cell electron gun cavity operating at 704 MHz recently has been successfully completed and will be discussed in this presentation. The test involved a large-grained niobium cavity identical in geometry to a fine-grained cavity installed in the Energy Recovery LINAC currently under construction in the Collider-Accelerator Department. The test was aimed at understanding the causes of multipacting that had been observed in the fine-grain gun and explore possible solutions. The presentation will introduce the features of the gun cavity, discuss the scientific and technical questions that were formulated at the outset of the investigation, and address the details and results of the initial stage of the testing program. Because this was the first test of the electron gun cavity here at Brookhaven and included the commissioning of a variety of facilities and systems including the Small Vertical Test Facility itself, a number of design and implementation challenges arose that were eventually solved, and the talk will discuss some of these challenges as well as present the results of the RF testing."

7

1. 12 pm, Bldg. 744 (LOB 4) Room: 4L 156

Hosted by: Klaus Attenkofer and Sanjit Ghose

2. 12:15 pm, Bldg. 725, Seminar Room

United Way Pizza Luncheon, Sponsored by the Photon Sciences Directorate Co-Captains Date: Friday, March 7th Time: 12:15 p.m. Place: Bldg. 725, Seminar Room Donation: $8 3. 2 pm, Physics, Building 510, Room 2-160 Hosted by: Elke Aschenauer The dijet cross-section measurement in proton-proton collisions at a$\sqrt{s} = $500 GeV is measured with a data sample of 8.7 pb$^{-1}$collected by the STAR detector during the 2009 RHIC run. The dijet cross-section is measured as a function of the dijet invariant mass$M_{ij}$in the range of$ 30 \le M_{ij} \le 152$GeV. The measurement lies within the mid-rapidity region with a maximum rapidity range$|y|_{max} \le 0.8$. This result shows agreement with theoretical next-to-leading order pQCD calculations, motivating the use of dijet asymmetries at STAR to further constrain the shape of$\Delta g(x)$. 4. 2 pm, Small Seminar Room, Bldg. 510 Hosted by: Bjoern Schenke 5. 4 pm, Bldg 911A, Large Conf. Rm, Rm. A202 Hosted by: Masahiro Okamura "The upgrade programs of the J-PARC linac are now in progress to achieve a beam power of 1 MW for a materials and life science experimental facility. The beam energy is increased from 181 to 400 MeV by Annular-ring coupled structures (ACSs). The mass-production of the ACS cavities commenced in March 2009, and the fabrication has been completed by March 2013. Some of the ACS cavities have been conditioned off-line. In the summer shutdown of 2013, the ACS cavities and the related instruments have been installed in the beam line, and then all the ACS cavities have been conditioned using pre-conditioned klystrons. The beam commissioning has been started for the energy upgrade. The beam current is increased from 30 to 50 mA by a new RF-driven H- ion source and a new RFQ for 50 mA acceleration. The off-line beam test using the new ion source and the new RFQ is almost ready to be started. The upgrade status of the J-PARC linac will be presented." 6. 5 pm, Berkner Hall Auditorium Hosted by: United Way 7. 5 pm, Berkner Hall Auditorium Hosted by: Starr Munson 5:00 - 7:30 at Berkner Hall Tickets are$10

8

1. 9 am, Large Seminar Room, Bldg. 510

Hosted by: Vivian Stojanoff

The 1/2-day seminar will include talks from several successful women who will address topics such as work-life balance and gender issues. -Mina Bissell (Distinguished Scientist, Lawrence Berkley National Laboratory) Wife, Mother, Scientist?" Or is it The Other Way Around? -Surita Bhatia (Associate Professor, Stony Brook University and Brookhaven National Laboratory) Strengthening Your Networks and Responding to Stress and Strain: What Women in STEM Can Learn From Soft Materials -Suzanne Davidson (Chief Financial Officer, Brookhaven National Laboratory) Introvert or Extrovert: Does Gender Matter? -Barbara Howie (Atorney at Law, President, Enterprising and Professional Women) How Lena Madesin Phillips Changed the World for Women -Gillian Winters (Vice President Long Island Physics Teachers Association, Smithtown School

9

1. There are no events scheduled at this time.

10

1. 11 am, Bldg. 734, ISB Seminar Room 201 (upstairs)

Hosted by: Weiguo Yin

Thanks to powerful evolutionary algorithms, in particular to the USPEX method [1-3], it is now possible to predict both the stable compounds and their crystal structures at arbitrary P,T-conditions, given just the set of chemical elements. Recent developments include the extension of this algorithm to molecular crystals [4] (which allowed large structures to be handled easily, leading to revision of high-pressure structures of Mg(BH4)2 [5], proving earlier proposed "experimental" structure to be incorrect) and a new technique called evolutionary metadynamics [6]. Some of the results that I will discuss include: 1. Theoretical and experimental evidence for a new stable high-pressure phase of boron, Î³-B [7], showing superhardness and charge transfer between boron atoms. 2. New insulating and optically transparent, and experimentally confirmed, form of sodium [8]. 3. Establishment of the structure of a carbon allotrope - M-carbon [1,9]. 4. Predicted reactivity of noble gases under moderate pressures - Xe [10] and even He. 5. Predicted stability of "impossible" chemical compounds - such as Na3Cl, Na2Cl, Na3Cl2, NaCl3, NaCl7 [11], Mg3O2 and MgO2 [12]. These compounds become stable under pressure and we already have compelling experimental evidence for some of them [11]. References [1] Oganov A.R., Glass C.W., J.Chem.Phys. 124, 244704 (2006). [2] Oganov A.R., Lyakhov A.O., Valle M., Acc. Chem. Res. 44, 227-237 (2011). [3] Lyakhov A.O., Oganov A.R., Stokes H.T., Zhu Q., Comp. Phys. Comm. 184, 1172-1182 (2013). [4] Zhu Q., Oganov A.R., Glass C.W., Stokes H.T., Acta Cryst. B68, 215-226 (2012). [5] Zhou X.-F., Oganov A.R., Qian G.R., Zhu Q., Phys. Rev. Lett. 109, 245503 (2012). [6] Zhu Q., Oganov A.R., Lyakhov A.O., Cryst.Eng.Comm. 14, 3596-3601 (2012). [7] Oganov A.R., Chen J., Gatti C., et al., Nature 457, 863 (

2. 1:30 pm, Bldg. 734, ISB Conf. Rm. 201 (upstairs)

Hosted by: John P. Hill

Na4Ir3O8 is a frustrated magnet with S = 1/2 moments on the hyperkagome lattice [1]. We present our recent bulk thermodynamic measurements of magnetic susceptibility (T &#8805; 1.8 K) and heat capacity (T &#8805; 0.5 K), thermal transport measurements (T &#8805; 75 mK), and magnetic GrÃ¼neisen parameter measurements (T &#8805; 0.3 K, H &#8804; 2 T) to show that Na4Ir3O8 is a strongly frustrated quantum magnet with no long range order down to the lowest temperatures measured. The magnetic GrÃ¼neisen parameter divergences as T&#8594; 0 K and scaling behavior indicates that Na4Ir3O8 is close to a zero-field quantum critical point (QCP) [2]. We will also present the first microscopic &#61549;SR and 23Na NMR measurements down to 5 K to support claims of a spin-liquid state. To search for a nearby magnetic state we have also studied polycrystals of Na4Â±&#61540;Ir3O8 with &#61540;&#61472;&#8804; 10%. The Na-deficient samples show evidence of both local and itinerant electrons while the magnetic susceptibility of Na-excess samples show a magnetic anomaly below 13 K suggesting that stoichiometric Na4Ir3O8 is close to a magnetic ground state. Low temperature &#61549;SR measurements (T &#8805; 30 mK) support indications of a close by magnetic state in Na4Ir3O8. These results strongly suggest that Na4Ir3O8 is a spin-liquid material situated close to a magnetic quantum critical point. [1] Y. Okamoto, M. Nohara, H. Aruga-Katori, and H. Takagi, Phys. Rev. Lett. 99, 137207 (2007). [2] Yogesh Singh, Y. Tokiwa, J. Dong, and P. Gegenwart, Phys. Rev. B 88, 220413 (2013)

3. 2 pm, CFN, Building 735 Conf. Rm. B

Hosted by: Qin Wu

Center for Functional Nanomaterials Seminar G. AndrÃ©s Cisneros Insights on liquid systems and DNA repair from computational simulations Department of Chemistry, Wayne State University, Detroit, MI Monday, March 10, 2014 2:00 p.m. bldg.. 735 ï¿½ï¿½" Conf. Rm. B Two topics related to development and applications of computational simulations will be presented. We have developed a novel force field that combines terms from two advanced potentials. The Coulomb and exchange repulsion are calculated using fitted electronic den-sities based on a force field developed by us called the Gaussian Electrostatic Model (GEM). These terms are coupled to the polarization, van der Waals and bonded terms from AMOEBA The required electronic integrals are calculated by means of reciprocal space methods to in-crease computational speed. We will present the details of our method, which we term GEM*, its implementation and performance for molecular dynamics simulations and its re-cent application to liquid water simulations as well as the development of AMOEBA for ionic liquids. The second topic involves the use of simulations to investigate DNA repair enzymes. Replication and repair of DNA are critical processes. Errors in either of these transactions can result in mutations, some of which can lead to disease or even death. Results will be presented on simulations of the rate limiting step of the reaction catalyzed by E. coli AlkB. AlkB is a DNA repair enzyme that catalyzes the oxidative deï¿½ï¿½"alkylation of DNA by means of a nonï¿½ï¿½"heme iron using Î±ï¿½ï¿½"keto glutarate and O2 as coï¿½ï¿½"factors.. Host: Qin Wu Joann Tesoriero Center for Functional Nanomaterials Bldg. 735 Upton, NY 11973 Tel: (631) 344-7791 Fax: (631) 344-7769 Tesorier

11

1. MAR

11

Tuesday

11 am, CFN, Building 735, Seminar Room, 2nd fl.

Tuesday, March 11, 2014, 11:00 am

Hosted by: Mark Hybertsen and the CFN Users' Executive Co

Coffee and cookies at 10:45 am Center for Functional Nanomaterials Colloquium: Distinguished CFN User Karl Berggren Smarter Lithography: Top-Down Control of Nanometer-Length-Scale Self-Assembly Tuesday, March 11, 2014 11:00 a.m. Seminar Room, 2nd Fl. The future of nanotechnology generally and the integrated circuit industry in particular depend on the ability to control and pattern complex structures at the nanometer length scale. We will discuss methods we have developed that use electron and ion beams to pattern structures at the single-nanometer length scale. However, covering large areas with nanometer-scale beams is a slow and expensive process, leading some to suggest that chemical and biological self-assembly might better address the future industrial needs in this area. The question is then, how to control self-assembly to create the kinds of flawless and arbitrary patterns the semiconductor industry now uses routinely in the fabrication of microchips? We will discuss a solution to this problem in which we pattern only a sparse structure and then use directed self-assembly of block copolymers to fill in the remaining space. The trick is to achieve a maximum of control and complexity in the final pattern with a minimum of expensive top-down lithography. The result is a surprising degree of control and perfection in patterning systems that would otherwise produce random patterns. We can even control double-layer patterns by using just a single layer of sparse electron-beam-defined posts. The methods take advantage of the natural tendencies of the block copolymers to form ordered linear arrays, with the posts serving to guide the arrays during the assembly process. A future vision of lithography, where engineering and chemistry work together to construct complex and useful nanometer-length-scale patterns is e

2. MAR

11

Tuesday

11 am, Small Seminar Room, Bldg. 510

Tuesday, March 11, 2014, 11:00 am

Hosted by: Oleg Eyser

As a particular realization of an electron ion collider (EIC), the eRHIC project envisions the addition of a high intensity polarized electron beam to the existing RHIC facility, providing e+p and e+A collisions and enabling precision studies of the partonic structure of hadronic matter. To fully exploit the physics potential of eRHIC, the PHENIX Collaboration is proposing a detector built upon sPHENIX, a planned upgrade of the current PHENIX experiment. This new detector, ePHENIX, uses the sPHENIX superconducting solenoid and barrel calorimetry and adds to this foundation precision tracking, particle-identification and calorimetry in the barrel, electron-going and hadron-going directions, opening a broad range of exciting EIC physics measurements (see http://arxiv.org/abs/1402.1209). We give an overview of ePHENIX detector design and discuss its broad capabilities for both nucleon structure imaging and high density nuclear matter studies.

3. MAR

11

Tuesday

12:15 pm, Conference Room A/B, Bldg. 490

Tuesday, March 11, 2014, 12:15 pm

Hosted by: Michael Thorn

On Site Weight Watchers Meetings!! Getting started with Weight Watchers is now Simpler then ever with Simple Start. Come on in and learn about our straight forward do-able 2 week started plan with delicious meal ideas and a great new app to get you started losing weight and on the path to long term success. Weight Watchers today at 12:15 in the Conference Room #490. If you are not already a member check out a meeting for free and hear all about Simple Start! Take advantage of the convenience of On-Site weekly meetings every Tuesday. Time for a new beginning.

4. MAR

11

Tuesday

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, March 11, 2014, 3:30 pm

Hosted by: William Morse

In light of the successful two year long first run and the discovery of the Higgs Boson, the LHC experiments are defining plans for the High Luminosity upgrades of the LHC complex. Physics motivations, strategies and technologies of the experiments, in particular of the ATLAS and CMS detectors, are reviewed.

5. MAR

11

Tuesday

7 pm, Hoptron Brewtique, 22 West Main St., Patchogue, NY

Tuesday, March 11, 2014, 7:00 pm

PubSci, a new science cafe series, provides a lively setting for the science-interested public to engage in discussions with scientists from Brookhaven National Laboratory in an informal and casual way. For our first event, we'll be joined by physicists who work at Brookhaven's particle collider to talk about how we explore what happened at the dawn of time from a Lab on Long Island. How did the Universe take shape? What binds matter together? How do we answer those questions? You don't need a degree to join the conversation. But you do need to be over 21. (The venue's rules, not ours.) Admission is free. Let us know you're coming - RSVP at the PubSci website.

12

1. MAR

12

Wednesday

10 am, Recreation Hall, Bldg. 317

Wednesday, March 12, 2014, 10:00 am

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

2. MAR

12

Wednesday

12 pm, Berkner Hall Auditorium

Wednesday, March 12, 2014, 12:00 pm

Hosted by: BSA

Hailed as "a pair of adventurous young talents," cellist Nicholas Canellakis and pianist/composer Michael Brown captivate audiences with thrilling performances

3. MAR

12

Wednesday

12 pm, Berkner Hall, Room D

Wednesday, March 12, 2014, 12:00 pm

Monthly board meeting for the Brookhaven Women in Science (BWIS) organisation. All BWIS members and affiliates are welcome to attend.

13

1. MAR

13

Thursday

8:30 am, Large Seminar Room, Bldg. 510

Thursday, March 13, 2014, 8:30 am

Hosted by: Taku Izubuchi

2. MAR

13

Thursday

2 pm, Physics, Building 510, Room 2-95

Thursday, March 13, 2014, 2:00 pm

Hosted by: Elizabeth Worcester

CUORE-0 is a cryogenic detector at Laboratori Nazionali del Gran Sasso in Italy that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of 130Te. I will present the first analysis of data collected since March 2013 and will report on the performance, energy resolution, and backgrounds of the experiment. Based on the measurements in the region of interest, the CUORE-0 half-life sensitivity is expected to surpass the observed lower bound of Cuoricino, a predecessor experiment, with one year of live time. CUORE-0 also serves as a technical prototype of CUORE, which will consist of 19 towers identical to the single CUORE-0 tower. The successful commissioning of CUORE-0 represents a major milestone towards CUORE, which is currently under construction and scheduled to begin data taking in 2015.

3. MAR

13

Thursday

2:30 pm, Large Conference Room, Bldg. 535

Thursday, March 13, 2014, 2:30 pm

Since 70's, Non Evaporable Getter (NEG) pumps have been adopted by R&D labs, research centres, the industry and in large physics projects (i.e., accelerators, synchrotrons, fusion reactors...). NEG pumps are very compact, light and vibration-free. They require minimal power and present reduced magnetic interference. Their large pumping speed for hydrogen, the main residual gas in UHV-XHV systems, and also all active gases, makes NEG pumps the ideal choice to get and maintain low pressure conditions in a variety of applications. The basic chemical and physical principle of operation of getter pumps, as well as their main practical features, will be presented with a special focus on their typical applications in accelerators, portable systems, surface science and other laboratory equipment.

4. MAR

13

Thursday

6:30 pm, Berkner Hall, Room B

Thursday, March 13, 2014, 6:30 pm

14

1. MAR

14

Friday

12 pm, Physics, Building 510, Room 2-95

Friday, March 14, 2014, 12:00 pm

Hosted by: Amarjit Soni

2. MAR

14

Friday

12:30 pm, Berkner Hall Lobby

Friday, March 14, 2014, 12:30 pm

Hosted by: S. Subudhi

3. MAR

14

Friday

2 pm, Large Seminar Room, Bldg. 510

Friday, March 14, 2014, 2:00 pm

Hosted by: Bjoern Schenke

15

1. MAR

15

Saturday

8 am, Build 935

Saturday, March 15, 2014, 8:00 am

Hosted by: Susan Frank

16

1. There are no events scheduled at this time.

17

1. MAR

17

Monday

11 am, John Dunn Seminar Room, Bldg. 463

Monday, March 17, 2014, 11:00 am

Hosted by: David Schlyer

Determination of gene function remains the primary biological goal in the post-genomic era. Chlamydomonas reinhardtii, a JGI flagship organism, is a premier reference for studies in fundamental processes, such as photosynthesis, cilia biogenesis, micronutrient homeostasis and value-added commodities. Yet only ~10% of predicted genes are associated with an experimentally validated functional annotation. Fortunately, significant advances in the depth, throughput and reduced cost of sequencing technologies are opening new avenues for probing gene function and assigning annotations. Recently, we have employed timecourse RNA-Seq approaches to investigate the molecular basis enabling a nitrogen-deprived starch-null mutant to accumulate more triacylglycerol (TAG) than starch-plus strains. Our transcriptomes were supported with selected in vitro biochemical assays, targeted metabolite studies and whole genome sequencing, and have provided novel insights to TAG production. More recent investigations have included: i) employment of gene co-expression analyses to predict protein localizations in a day/night cycling culture analyzed by high temporal-resolution transcriptomes, and ii) development of systems required for high-throughput, automated, phenotyping in conjunction with genome sequencing in a genome wide mutant collection we have constructed.

18

1. MAR

18

Tuesday

10:30 am, Conference Room A/B, Bldg. 490

Tuesday, March 18, 2014, 10:30 am

Hosted by: michael Thorn

On Site Weight Watchers Meetings!! Getting started with Weight Watchers is now Simpler then ever with Simple Start. Come on in and learn about our straight forward do-able 2 week started plan with delicious meal ideas and a great new app to get you started losing weight and on the path to long term success. Weight Watchers today at 12:15 in the Conference Room #490. If you are not already a member check out a meeting for free and hear all about Simple Start! Take advantage of the convenience of On-Site weekly meetings every Tuesday. Time for a new beginning.

2. MAR

18

Tuesday

11 am, John Dunn Seminar Room, Bldg. 463

Tuesday, March 18, 2014, 11:00 am

Hosted by: David Schlyer

All organisms are dependent upon the availability of transition metals, which either participate directly in catalysis or serve structural roles in proteins. Because of the nutrient-toxin dichotomy, the cell tightly regulates uptake, distribution and storage of these trace elements. Numerous pathways have evolved to ensure that the right metal, at the correct concentration, makes its way to a specific protein. When faced with a suboptimal trace element concentration, metallo-enzyme activity is negatively impacted by lack of cofactor, which is exacerbated by potential binding of the wrong cofactor. Using transcriptome sequencing of a unicellular green alga under various metal-deficiency situations, we are revealing strategies that widen the window of metal concentrations in which a plant can survive. These strategies include sparing and salvaging of the limiting nutrient, sequestration of non-limiting metals, and cross-talk between metal-responsive transcription factors.

3. MAR

18

Tuesday

12 pm, Berkner Hall, Room B

Tuesday, March 18, 2014, 12:00 pm

Are You Fiscally Fit? Build a solid financial future through the process of proper financial planning! Join us for this first workshop in the "Fiscally Fit" seminar series and learn how to: â€¢ Overcome the roadblocks to financial success â€¢ Create and maintain a financial blueprint â€¢ Cultivate daily habits to positively influence your financial fitness â€¢ Develop your own action steps to financial freedom â€¢ Identify cash flow traps â€¢ Put dollars back into your monthly cash flow through proper tax-planning

4. MAR

18

Tuesday

12 pm, Bldg 400, RSB 1 & 2

Tuesday, March 18, 2014, 12:00 pm

Bring your lunch, and beverages will be provided.

5. MAR

18

Tuesday

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, March 18, 2014, 3:30 pm

Once or twice per decade, the discovery of a new class of electronic materials takes the world by storm, generating thousands of scientific publications per year, and broad hopes for practical applications. In this category are the so-called "topological materials" â€" typically bulk insulators hosting topologically protected metallic surface states whose strongly coupled spin and momentum degrees of freedom have prompted numerous proposals for nanoscale devices. After an introduction to topological materials, I will describe efforts in my laboratory to measure their properties via low temperature scanning tunneling microscopy. In the topological semimetal antimony (Sb), we study the effects of single-atom defects, we quantify parameters relevant to spintronics applications, and we establish new techniques for nanoscale band structure measurements. We further apply these techniques to SmB6, whose anomalous electronic properties have remained mysterious for almost 50 years, but may finally be explained as arising from a topological Kondo insulator phase.

19

1. MAR

19

Wednesday

8:30 am, Brookhaven Center

Wednesday, March 19, 2014, 8:30 am

2. MAR

19

Wednesday

9 am, Brookhaven Center

Wednesday, March 19, 2014, 9:00 am

3. MAR

19

Wednesday

10 am, Recreation Hall, Bldg. 317

Wednesday, March 19, 2014, 10:00 am

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

4. MAR

19

Wednesday

11 am, Hamilton Seminar Room, Bldg. 555

Wednesday, March 19, 2014, 11:00 am

Hosted by: Dario Stacchiola

20

1. MAR

20

Thursday

8:30 am, Brookhaven Center

Thursday, March 20, 2014, 8:30 am

Hosted by: Kahille Dorsinvil

This annual event starts with various groups within the lab speaking informally with participants from local area high schools. Two speakers briefly outline their career path - why they chose science and how they got to where they are today. After lunch, a researcher shares the details about their current research project, and the day finishes with a short visit to the Science Learning Center for hand-on science fun.

2. MAR

20

Thursday

9 am, CFN (Bldg. 735), Second Floor Seminar Room

Thursday, March 20, 2014, 9:00 am

There will be a special "Get to Know the Lab" on Thursday, March 20, at 9 a.m. This time we'll visit the Center for Functional Nanomaterials (CFN) (Bldg. 735) for a presentation and tour. The CFN explores the unique properties of materials and processes at the nanoscale. As a user-oriented research center, its mission is to be an open facility for the nanoscience research community and to advance the science of nanomaterials in ways that address the nation's energy challenges. The session will begin in the CFN's second floor seminar room with a presentation by CFN Director Emilio Mendez and Assistant Director for the User Program and External Affairs Jay Dickerson. Following the presentation, Emilio and Jay will lead a tour of the facility to see its research tools. This is the ninth in a series of monthly "Get to Know the Lab" talks, giving members of the Lab community an opportunity to learn more about what we do — especially in individual science and operational program areas. Staff from across the Lab can meet Laboratory leaders, hear about their initiatives, plans, and strategies, and ask questions.

3. MAR

20

Thursday

12:30 pm, Physics, Building 510, Room 2-160

Thursday, March 20, 2014, 12:30 pm

Hosted by: Tomomi Ishikawa

4. MAR

20

Thursday

3 pm, Small Seminar Room, Bldg. 510

Thursday, March 20, 2014, 3:00 pm

Hosted by: Anze Slosar

We are currently in an exciting era of precision cosmology. With the release of the cosmic microwave background data recorded by the Planck satellite, we are now in a position to accurately test the standard model of cosmology and particle physics. In this talk, I will present two new, precise measures of the primordial abundance of deuterium - the most accurate measurements to date - derived from redshift ~3 metal-poor damped Lyman-alpha systems. In light of these new measurements, we have performed a careful reanalysis of the best literature systems where the primordial deuterium abundance can be estimated. These precise measures, when analyzed in conjunction with the Planck data, now place strong limits on the effective number of neutrino species in the early Universe, and offers new insight into physics beyond the standard model. I will also discuss our ongoing survey to obtain new precision measures of the primordial deuterium abundance.

21

1. MAR

21

Friday

12 pm, Physics, Building 510, Room 2-160

Friday, March 21, 2014, 12:00 pm

Hosted by: Amarjit Soni

2. MAR

21

Friday

2 pm, Small Seminar Room, Bldg. 510

Friday, March 21, 2014, 2:00 pm

Hosted by: Bjoern Schenke

22

1. There are no events scheduled at this time.

23

1. There are no events scheduled at this time.

24

1. There are no events scheduled at this time.

25

1. MAR

25

Tuesday

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, March 25, 2014, 3:30 pm

Hosted by: Peter Petreczky

Time-reversal (T) symmetry is observed to be broken in K- and B-meson systems, in a manner consistent with the Standard Model (SM) of electroweak interactions. Violation of T-invariance makes it possible for elementary particles such as the electron to have an electric dipole moment (EDM) along their spin axis. Although the SM prediction for the electron EDM is too small to detect, extensions to the SM frequently predict EDMs within a few orders of magnitude of the current limit. I will describe the ACME experiment, which uses methods of atomic and molecular physics to detect the electron's EDM. We recently completed the most sensitive search for this quantity, finding a result consistent with zero but setting a limit an order of magnitude smaller than previous work. Remarkably, the result of this tabletop-scale experiment sets strong constraints on the existence of T-violating phenomena well above the TeV scale being probed at the Large Hadron Collider, and has a substantial impact on theories of physics beyond the Standard Model.

26

1. MAR

26

Wednesday

10 am, Recreation Hall, Bldg. 317

Wednesday, March 26, 2014, 10:00 am

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

27

1. MAR

27

Thursday

12:30 pm, Physics, Bldg. 510, Room 2-160

Thursday, March 27, 2014, 12:30 pm

Hosted by: Daniel Pitonyak

2. MAR

27

Thursday

12:30 pm, Physics, Bldg 510, Room 2-160

Thursday, March 27, 2014, 12:30 pm

Hosted by: Daniel Potonyak

3. MAR

27

Thursday

2 pm, Bldg. 743 Rm 177

Thursday, March 27, 2014, 2:00 pm

Hosted by: Wah-Keat Lee

Canceled Seminar scheduled for 2/13/14 due to snow and will be rescheduled. Exact date is unknown but selected 3/27/14 as an estimated dated (posted by em 2/12/14). When a molten material is cooled, it typically grows into orderly crystals. But if the cooling rate is too fast for the entire melt to crystallize, the remaining material ends up in a non-crystalline state known as a glass. This talk is about the discovery and characterization of a unique metallic glass that, during rapid cooling, forms a solid by means of nucleation followed by growth normal to a moving interface between the solid and melt, with partitioning of the chemical elements. We were able to show experimentally that this is not a polycrystalline composite with nanometer-sized grains, and conclude that this may be a new kind of structure: an atomically ordered, isotropic, non-crystalline solid, possessing no long-range translational symmetry. This novel structureâ€"isotropic with infinite rotational symmetry and no translational symmetryâ€"had been considered theoretically possible, but has never before been observed.

28

1. MAR

28

Friday

2 pm, Small Seminar Room, Bldg. 510

Friday, March 28, 2014, 2:00 pm

Hosted by: Bjoern Schenke

29

1. There are no events scheduled at this time.

30

1. There are no events scheduled at this time.

31

1. There are no events scheduled at this time.

1. MAR

11

Tuesday

Center for Functional Nanomaterials Seminar

"Smarter Lithography: Top-Down Control of Nanometer-Length-Scale Self-Assembly"

Presented by Karl Berggren

11 am, CFN, Building 735, Seminar Room, 2nd fl.

Tuesday, March 11, 2014, 11:00 am

Hosted by: Mark Hybertsen and the CFN Users' Executive Co

Coffee and cookies at 10:45 am Center for Functional Nanomaterials Colloquium: Distinguished CFN User Karl Berggren Smarter Lithography: Top-Down Control of Nanometer-Length-Scale Self-Assembly Tuesday, March 11, 2014 11:00 a.m. Seminar Room, 2nd Fl. The future of nanotechnology generally and the integrated circuit industry in particular depend on the ability to control and pattern complex structures at the nanometer length scale. We will discuss methods we have developed that use electron and ion beams to pattern structures at the single-nanometer length scale. However, covering large areas with nanometer-scale beams is a slow and expensive process, leading some to suggest that chemical and biological self-assembly might better address the future industrial needs in this area. The question is then, how to control self-assembly to create the kinds of flawless and arbitrary patterns the semiconductor industry now uses routinely in the fabrication of microchips? We will discuss a solution to this problem in which we pattern only a sparse structure and then use directed self-assembly of block copolymers to fill in the remaining space. The trick is to achieve a maximum of control and complexity in the final pattern with a minimum of expensive top-down lithography. The result is a surprising degree of control and perfection in patterning systems that would otherwise produce random patterns. We can even control double-layer patterns by using just a single layer of sparse electron-beam-defined posts. The methods take advantage of the natural tendencies of the block copolymers to form ordered linear arrays, with the posts serving to guide the arrays during the assembly process. A future vision of lithography, where engineering and chemistry work together to construct complex and useful nanometer-length-scale patterns is e

2. MAR

11

Tuesday

Nuclear Physics Seminar

"ePHENIX: An Electron Ion Collider Detector Built Around the BaBar Magnet"

Presented by Alexander Bazilevsky, BNL

11 am, Small Seminar Room, Bldg. 510

Tuesday, March 11, 2014, 11:00 am

Hosted by: Oleg Eyser

As a particular realization of an electron ion collider (EIC), the eRHIC project envisions the addition of a high intensity polarized electron beam to the existing RHIC facility, providing e+p and e+A collisions and enabling precision studies of the partonic structure of hadronic matter. To fully exploit the physics potential of eRHIC, the PHENIX Collaboration is proposing a detector built upon sPHENIX, a planned upgrade of the current PHENIX experiment. This new detector, ePHENIX, uses the sPHENIX superconducting solenoid and barrel calorimetry and adds to this foundation precision tracking, particle-identification and calorimetry in the barrel, electron-going and hadron-going directions, opening a broad range of exciting EIC physics measurements (see http://arxiv.org/abs/1402.1209). We give an overview of ePHENIX detector design and discuss its broad capabilities for both nucleon structure imaging and high density nuclear matter studies.

3. MAR

11

Tuesday

Weight Watchers

"Weight Watchers"

12:15 pm, Conference Room A/B, Bldg. 490

Tuesday, March 11, 2014, 12:15 pm

Hosted by: Michael Thorn

On Site Weight Watchers Meetings!! Getting started with Weight Watchers is now Simpler then ever with Simple Start. Come on in and learn about our straight forward do-able 2 week started plan with delicious meal ideas and a great new app to get you started losing weight and on the path to long term success. Weight Watchers today at 12:15 in the Conference Room #490. If you are not already a member check out a meeting for free and hear all about Simple Start! Take advantage of the convenience of On-Site weekly meetings every Tuesday. Time for a new beginning.

4. MAR

11

Tuesday

Physics Colloquium

"The evolution of the LHC experiments toward the High Luminosity LHC"

Presented by Francesco Lanni, BNL

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, March 11, 2014, 3:30 pm

Hosted by: William Morse

In light of the successful two year long first run and the discovery of the Higgs Boson, the LHC experiments are defining plans for the High Luminosity upgrades of the LHC complex. Physics motivations, strategies and technologies of the experiments, in particular of the ATLAS and CMS detectors, are reviewed.

5. MAR

11

Tuesday

PubSci

"Big Bang Physics and the Building Blocks of Matter"

Presented by Berndt Mueller, Paul Sorensen, Agnes Mocsy, Brookhaven National Laboratory and Pratt Institute

7 pm, Hoptron Brewtique, 22 West Main St., Patchogue, NY

Tuesday, March 11, 2014, 7:00 pm

PubSci, a new science cafe series, provides a lively setting for the science-interested public to engage in discussions with scientists from Brookhaven National Laboratory in an informal and casual way. For our first event, we'll be joined by physicists who work at Brookhaven's particle collider to talk about how we explore what happened at the dawn of time from a Lab on Long Island. How did the Universe take shape? What binds matter together? How do we answer those questions? You don't need a degree to join the conversation. But you do need to be over 21. (The venue's rules, not ours.) Admission is free. Let us know you're coming - RSVP at the PubSci website.

6. MAR

12

Wednesday

Hospitality Coffee & Playgroup Event

"Hospitality Coffee & Playgroup (10am-noon)"

10 am, Recreation Hall, Bldg. 317

Wednesday, March 12, 2014, 10:00 am

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

7. MAR

12

Wednesday

Brookhaven Women In Science (BWIS) Event

"Board Meeting"

12 pm, Berkner Hall, Room D

Wednesday, March 12, 2014, 12:00 pm

Monthly board meeting for the Brookhaven Women in Science (BWIS) organisation. All BWIS members and affiliates are welcome to attend.

8. MAR

12

Wednesday

BSA Noon Recital

"'Dynamic' Duo Canellakis-Brown to Perform at Brookhaven Lab"

12 pm, Berkner Hall Auditorium

Wednesday, March 12, 2014, 12:00 pm

Hosted by: BSA

Hailed as "a pair of adventurous young talents," cellist Nicholas Canellakis and pianist/composer Michael Brown captivate audiences with thrilling performances

9. MAR

13

Thursday

Brian Circulation Workshop

8:30 am, Large Seminar Room, Bldg. 510

Thursday, March 13, 2014, 8:30 am

Hosted by: Taku Izubuchi

10. MAR

13

Thursday

Particle Physics Seminar

"Initial performance of the CUORE-0 experiment"

Presented by Kyungeun Lim, Yale University

2 pm, Physics, Building 510, Room 2-95

Thursday, March 13, 2014, 2:00 pm

Hosted by: Elizabeth Worcester

CUORE-0 is a cryogenic detector at Laboratori Nazionali del Gran Sasso in Italy that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of 130Te. I will present the first analysis of data collected since March 2013 and will report on the performance, energy resolution, and backgrounds of the experiment. Based on the measurements in the region of interest, the CUORE-0 half-life sensitivity is expected to surpass the observed lower bound of Cuoricino, a predecessor experiment, with one year of live time. CUORE-0 also serves as a technical prototype of CUORE, which will consist of 19 towers identical to the single CUORE-0 tower. The successful commissioning of CUORE-0 represents a major milestone towards CUORE, which is currently under construction and scheduled to begin data taking in 2015.

11. MAR

13

Thursday

Instrumentation Division Seminar

"Non Evaporable Getter (NEG) Technologies in UHV-XHV vacuum systems: sorption mechanisms, experimental data and examples"

Presented by Enrico Maccallini, SAES Getters S.p.A., Italy

2:30 pm, Large Conference Room, Bldg. 535

Thursday, March 13, 2014, 2:30 pm

Since 70's, Non Evaporable Getter (NEG) pumps have been adopted by R&D labs, research centres, the industry and in large physics projects (i.e., accelerators, synchrotrons, fusion reactors...). NEG pumps are very compact, light and vibration-free. They require minimal power and present reduced magnetic interference. Their large pumping speed for hydrogen, the main residual gas in UHV-XHV systems, and also all active gases, makes NEG pumps the ideal choice to get and maintain low pressure conditions in a variety of applications. The basic chemical and physical principle of operation of getter pumps, as well as their main practical features, will be presented with a special focus on their typical applications in accelerators, portable systems, surface science and other laboratory equipment.

12. MAR

13

Thursday

"Open to the Public"

6:30 pm, Berkner Hall, Room B

Thursday, March 13, 2014, 6:30 pm

13. MAR

14

Friday

HET/BNL Lunch Time Talk

"Dark Matter Signals via Kinetic Mixing"

Presented by Ze'ev Surujon, YITP, Stony Brook University

12 pm, Physics, Building 510, Room 2-95

Friday, March 14, 2014, 12:00 pm

Hosted by: Amarjit Soni

14. MAR

14

Friday

United Way Fundraiser - Treasure Chest Event Drawing

"Treasure Chest event"

12:30 pm, Berkner Hall Lobby

Friday, March 14, 2014, 12:30 pm

Hosted by: S. Subudhi

15. MAR

14

Friday

Nuclear Physics & RIKEN Theory Seminar

"Delineating the partonic structure of the nucleon: JR and JAM"

2 pm, Large Seminar Room, Bldg. 510

Friday, March 14, 2014, 2:00 pm

Hosted by: Bjoern Schenke

16. MAR

15

Saturday

Office of Educational Programs Event

"Bridge Contest"

8 am, Build 935

Saturday, March 15, 2014, 8:00 am

Hosted by: Susan Frank

17. MAR

17

Monday

Biosciences Department Seminar

"Omic-Methods to Divine Gene Function"

Presented by Ian Blaby, Department of Chemistry and Biochemistry, University of California, Los Angeles

11 am, John Dunn Seminar Room, Bldg. 463

Monday, March 17, 2014, 11:00 am

Hosted by: David Schlyer

Determination of gene function remains the primary biological goal in the post-genomic era. Chlamydomonas reinhardtii, a JGI flagship organism, is a premier reference for studies in fundamental processes, such as photosynthesis, cilia biogenesis, micronutrient homeostasis and value-added commodities. Yet only ~10% of predicted genes are associated with an experimentally validated functional annotation. Fortunately, significant advances in the depth, throughput and reduced cost of sequencing technologies are opening new avenues for probing gene function and assigning annotations. Recently, we have employed timecourse RNA-Seq approaches to investigate the molecular basis enabling a nitrogen-deprived starch-null mutant to accumulate more triacylglycerol (TAG) than starch-plus strains. Our transcriptomes were supported with selected in vitro biochemical assays, targeted metabolite studies and whole genome sequencing, and have provided novel insights to TAG production. More recent investigations have included: i) employment of gene co-expression analyses to predict protein localizations in a day/night cycling culture analyzed by high temporal-resolution transcriptomes, and ii) development of systems required for high-throughput, automated, phenotyping in conjunction with genome sequencing in a genome wide mutant collection we have constructed.

18. MAR

18

Tuesday

Weight Watchers

"Weight Watchers"

10:30 am, Conference Room A/B, Bldg. 490

Tuesday, March 18, 2014, 10:30 am

Hosted by: michael Thorn

On Site Weight Watchers Meetings!! Getting started with Weight Watchers is now Simpler then ever with Simple Start. Come on in and learn about our straight forward do-able 2 week started plan with delicious meal ideas and a great new app to get you started losing weight and on the path to long term success. Weight Watchers today at 12:15 in the Conference Room #490. If you are not already a member check out a meeting for free and hear all about Simple Start! Take advantage of the convenience of On-Site weekly meetings every Tuesday. Time for a new beginning.

19. MAR

18

Tuesday

Biosciences Department Seminar

"Metallomics: A Whole-Genome Approach to the Study of Intracellular Metal Trafficking"

Presented by Crysten Blaby-Haas, Department of Chemistry and Biochemistry, University of California, Los Angeles

11 am, John Dunn Seminar Room, Bldg. 463

Tuesday, March 18, 2014, 11:00 am

Hosted by: David Schlyer

All organisms are dependent upon the availability of transition metals, which either participate directly in catalysis or serve structural roles in proteins. Because of the nutrient-toxin dichotomy, the cell tightly regulates uptake, distribution and storage of these trace elements. Numerous pathways have evolved to ensure that the right metal, at the correct concentration, makes its way to a specific protein. When faced with a suboptimal trace element concentration, metallo-enzyme activity is negatively impacted by lack of cofactor, which is exacerbated by potential binding of the wrong cofactor. Using transcriptome sequencing of a unicellular green alga under various metal-deficiency situations, we are revealing strategies that widen the window of metal concentrations in which a plant can survive. These strategies include sparing and salvaging of the limiting nutrient, sequestration of non-limiting metals, and cross-talk between metal-responsive transcription factors.

20. MAR

18

Tuesday

Getting Fiscally Fit

"Presented by The Foundation for Personal Financial Education"

Craig J. Ferrantino, Chapter Director FPFE

12 pm, Berkner Hall, Room B

Tuesday, March 18, 2014, 12:00 pm

Are You Fiscally Fit? Build a solid financial future through the process of proper financial planning! Join us for this first workshop in the "Fiscally Fit" seminar series and learn how to: â€¢ Overcome the roadblocks to financial success â€¢ Create and maintain a financial blueprint â€¢ Cultivate daily habits to positively influence your financial fitness â€¢ Develop your own action steps to financial freedom â€¢ Identify cash flow traps â€¢ Put dollars back into your monthly cash flow through proper tax-planning

21. MAR

18

Tuesday

Tax Overview Workshop for Visiting Foreign Nationals

"Tax Overview Workshop for Visiting Foreign Nationals"

12 pm, Bldg 400, RSB 1 & 2

Tuesday, March 18, 2014, 12:00 pm

Bring your lunch, and beverages will be provided.

22. MAR

18

Tuesday

Physics Colloquium

""Topological Materials at the Nanoscale""

Presented by Jennifer Hoffman, Harvard University

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, March 18, 2014, 3:30 pm

Once or twice per decade, the discovery of a new class of electronic materials takes the world by storm, generating thousands of scientific publications per year, and broad hopes for practical applications. In this category are the so-called "topological materials" â€" typically bulk insulators hosting topologically protected metallic surface states whose strongly coupled spin and momentum degrees of freedom have prompted numerous proposals for nanoscale devices. After an introduction to topological materials, I will describe efforts in my laboratory to measure their properties via low temperature scanning tunneling microscopy. In the topological semimetal antimony (Sb), we study the effects of single-atom defects, we quantify parameters relevant to spintronics applications, and we establish new techniques for nanoscale band structure measurements. We further apply these techniques to SmB6, whose anomalous electronic properties have remained mysterious for almost 50 years, but may finally be explained as arising from a topological Kondo insulator phase.

23. MAR

19

Wednesday

Office of Educational Programs Event

"MagLev Competition"

8:30 am, Brookhaven Center

Wednesday, March 19, 2014, 8:30 am

24. MAR

19

Wednesday

Office of Educational Programs Event

"MagLev Contest"

9 am, Brookhaven Center

Wednesday, March 19, 2014, 9:00 am

25. MAR

19

Wednesday

Hospitality Coffee & Playgroup Event

"Hospitality Coffee & Playgroup (10am-noon)"

10 am, Recreation Hall, Bldg. 317

Wednesday, March 19, 2014, 10:00 am

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

26. MAR

19

Wednesday

Chemistry Department Colloquium

Presented by Eric Altman

11 am, Hamilton Seminar Room, Bldg. 555

Wednesday, March 19, 2014, 11:00 am

Hosted by: Dario Stacchiola

27. MAR

20

Thursday

BWIS Career Day

"BWIS High School Career Day 2014"

8:30 am, Brookhaven Center

Thursday, March 20, 2014, 8:30 am

Hosted by: Kahille Dorsinvil

This annual event starts with various groups within the lab speaking informally with participants from local area high schools. Two speakers briefly outline their career path - why they chose science and how they got to where they are today. After lunch, a researcher shares the details about their current research project, and the day finishes with a short visit to the Science Learning Center for hand-on science fun.

28. MAR

20

Thursday

All-employee Event

"Get to Know the Lab: CFN Insights & Tour"

Emilio Mendez and Jay Dickerson

9 am, CFN (Bldg. 735), Second Floor Seminar Room

Thursday, March 20, 2014, 9:00 am

There will be a special "Get to Know the Lab" on Thursday, March 20, at 9 a.m. This time we'll visit the Center for Functional Nanomaterials (CFN) (Bldg. 735) for a presentation and tour. The CFN explores the unique properties of materials and processes at the nanoscale. As a user-oriented research center, its mission is to be an open facility for the nanoscience research community and to advance the science of nanomaterials in ways that address the nation's energy challenges. The session will begin in the CFN's second floor seminar room with a presentation by CFN Director Emilio Mendez and Assistant Director for the User Program and External Affairs Jay Dickerson. Following the presentation, Emilio and Jay will lead a tour of the facility to see its research tools. This is the ninth in a series of monthly "Get to Know the Lab" talks, giving members of the Lab community an opportunity to learn more about what we do — especially in individual science and operational program areas. Staff from across the Lab can meet Laboratory leaders, hear about their initiatives, plans, and strategies, and ask questions.

29. MAR

20

Thursday

RIKEN/BNL Lunch Time Talk

"TBA"

Presented by Matthew Sievert, Ohio State University

12:30 pm, Physics, Building 510, Room 2-160

Thursday, March 20, 2014, 12:30 pm

Hosted by: Tomomi Ishikawa

30. MAR

20

Thursday

Particle Physics Seminar

"Precision measures of the primordial deuterium abundance"

Presented by Ryan Cooke, UC Santa Cruz

3 pm, Small Seminar Room, Bldg. 510

Thursday, March 20, 2014, 3:00 pm

Hosted by: Anze Slosar

We are currently in an exciting era of precision cosmology. With the release of the cosmic microwave background data recorded by the Planck satellite, we are now in a position to accurately test the standard model of cosmology and particle physics. In this talk, I will present two new, precise measures of the primordial abundance of deuterium - the most accurate measurements to date - derived from redshift ~3 metal-poor damped Lyman-alpha systems. In light of these new measurements, we have performed a careful reanalysis of the best literature systems where the primordial deuterium abundance can be estimated. These precise measures, when analyzed in conjunction with the Planck data, now place strong limits on the effective number of neutrino species in the early Universe, and offers new insight into physics beyond the standard model. I will also discuss our ongoing survey to obtain new precision measures of the primordial deuterium abundance.

31. MAR

21

Friday

High-Energy Physics & RIKEN Theory Seminar

"TBA"

Presented by Meifeng Lin, BNL

12 pm, Physics, Building 510, Room 2-160

Friday, March 21, 2014, 12:00 pm

Hosted by: Amarjit Soni

32. MAR

21

Friday

Nuclear Physics & RIKEN Theory Seminar

"TBA"

Presented by Gokce Basar, Stony Brook

2 pm, Small Seminar Room, Bldg. 510

Friday, March 21, 2014, 2:00 pm

Hosted by: Bjoern Schenke

33. MAR

25

Tuesday

Physics Colloquium

"A tabletop-scale probe for TeV physics: the electric dipole moment of the electron"

Presented by David DeMille, Yale University

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, March 25, 2014, 3:30 pm

Hosted by: Peter Petreczky

Time-reversal (T) symmetry is observed to be broken in K- and B-meson systems, in a manner consistent with the Standard Model (SM) of electroweak interactions. Violation of T-invariance makes it possible for elementary particles such as the electron to have an electric dipole moment (EDM) along their spin axis. Although the SM prediction for the electron EDM is too small to detect, extensions to the SM frequently predict EDMs within a few orders of magnitude of the current limit. I will describe the ACME experiment, which uses methods of atomic and molecular physics to detect the electron's EDM. We recently completed the most sensitive search for this quantity, finding a result consistent with zero but setting a limit an order of magnitude smaller than previous work. Remarkably, the result of this tabletop-scale experiment sets strong constraints on the existence of T-violating phenomena well above the TeV scale being probed at the Large Hadron Collider, and has a substantial impact on theories of physics beyond the Standard Model.

34. MAR

26

Wednesday

Hospitality Coffee & Playgroup Event

"Hospitality Coffee & Playgroup (10am-noon)"

10 am, Recreation Hall, Bldg. 317

Wednesday, March 26, 2014, 10:00 am

To join Playgroup, go to: meetup.com/BL-playgroup Tours, snacks, information and general socializing! All are welcome!

35. MAR

27

Thursday

RIKEN/BNL Lunch Time Talk

"TBA"

Presented by Yan-Qing Ma, BNL

12:30 pm, Physics, Bldg. 510, Room 2-160

Thursday, March 27, 2014, 12:30 pm

Hosted by: Daniel Pitonyak

36. MAR

27

Thursday

RIKEN/BNL Lunch Time Talk

"TBA"

Presented by Yan-Qing Ma, BNL

12:30 pm, Physics, Bldg 510, Room 2-160

Thursday, March 27, 2014, 12:30 pm

Hosted by: Daniel Potonyak

37. MAR

27

Thursday

NSLS-II Seminar

"A metallic glass that grows from the melt like a crystal"

Presented by Gabrielle Long, ANL, United States Minor Outlying Islands

2 pm, Bldg. 743 Rm 177

Thursday, March 27, 2014, 2:00 pm

Hosted by: Wah-Keat Lee

Canceled Seminar scheduled for 2/13/14 due to snow and will be rescheduled. Exact date is unknown but selected 3/27/14 as an estimated dated (posted by em 2/12/14). When a molten material is cooled, it typically grows into orderly crystals. But if the cooling rate is too fast for the entire melt to crystallize, the remaining material ends up in a non-crystalline state known as a glass. This talk is about the discovery and characterization of a unique metallic glass that, during rapid cooling, forms a solid by means of nucleation followed by growth normal to a moving interface between the solid and melt, with partitioning of the chemical elements. We were able to show experimentally that this is not a polycrystalline composite with nanometer-sized grains, and conclude that this may be a new kind of structure: an atomically ordered, isotropic, non-crystalline solid, possessing no long-range translational symmetry. This novel structureâ€"isotropic with infinite rotational symmetry and no translational symmetryâ€"had been considered theoretically possible, but has never before been observed.

38. MAR

28

Friday

Nuclear Physics & RIKEN Theory Seminar

"TBA"

Presented by Kevin Dusling, APS

2 pm, Small Seminar Room, Bldg. 510

Friday, March 28, 2014, 2:00 pm

Hosted by: Bjoern Schenke

39. APR

1

Tuesday

Nuclear Physics Seminar

"Extracting Rigorous Conclusions from Model-Data Comparisons"

Presented by Scott Pratt, Michigan State University

11 am, Small Seminar Room, Bldg. 510

Tuesday, April 1, 2014, 11:00 am

Hosted by: Hui Wang

RHIC science has entered an era where the goal is to make quantitative statements about the evolution and properties of the super-hadronic matter created in high-energy heavy-ion collisions. Given the heterogenous nature of the RHIC and LHC heavy-ion data sets, the significant uncertainties to the theoretical models, and the complex intertwined dependencies between model parameters and observables, stating conclusions with meaningful uncertainties represents a major challenge. I will present results from the MADAI collaboration, where we have constructed a statistical infrastructure for addressing exactly such problems and applied it to a subset of soft observables from 100A GeV + 100A GeV Au + Au collisions. The results from this pilot project are promising and the techniques should be extendable to larger data sets and to more flexible models with greater numbers of parameters.

40. APR

1

Tuesday

Physics Colloquium

"TBA"

Presented by Jean-Paul Blaizot, CEA-Saclay

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, April 1, 2014, 3:30 pm

Hosted by: Rob Pisarski

41. APR

4

Friday

HET/BNL Lunch Time Talk

"TBA"

Presented by Michael Geller, Technion

12 pm, Physics, Building 510, Room 2-160

Friday, April 4, 2014, 12:00 pm

Hosted by: Amarjit Soni

42. APR

8

Tuesday

Physics Colloquium

"Mr. Particle Physicist Goes to Washington: HEP User Community Government Relations in the Context of P5"

Presented by Breese Quinn, University of Mississippi

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, April 8, 2014, 3:30 pm

Hosted by: Bill Morse

We all know that High Energy Physics research in the U.S. is funded almost entirely by the federal government. Our field competes for federal dollars with colleagues as close as Nuclear Physics, and as far removed as the National Park Service or School Lunch Program. Just how does our budget get put together, and by whom? What do we do, specifically as a User community, to advocate for our research program to the people who make the funding decisions for our field? Do we have any real, positive effect? And finally, how are the answers to these questions impacted by the current P5 process?

43. APR

9

Wednesday

Brookhaven Women In Science (BWIS) Event

"Board Meeting"

12 pm, Berkner Hall, Room D

Wednesday, April 9, 2014, 12:00 pm

Monthly meeting of the Brookhaven Women in Science (BWIS) board. All BWIS members and affiliates are welcome to attend.

44. APR

9

Wednesday

Joint HET/YITP/RIKEN Seminar

"TBA"

Presented by Rachel Rosen, Columbia University

2 pm, Small Seminar Room, Bldg. 510

Wednesday, April 9, 2014, 2:00 pm

Hosted by: Hooman Davoudiasl

45. APR

10

Thursday

"Open to the Public"

6:30 pm, Berkner Hall, Room B

Thursday, April 10, 2014, 6:30 pm

46. APR

15

Tuesday

Physics Colloquium

"The proton-neutron interaction and the emergence of collectivity in the structure of atomic nuclei"

Presented by Richard F. Casten, Yale University

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, April 15, 2014, 3:30 pm

Hosted by: Peter Petreczky

Despite the complexities of the nucleonic interactions in atomic nuclei, nuclei display remarkably simple patterns, and regularities as a function of neutron and proton number. Many of these patterns are associated with the emergence of collective behavior. Such behavior is largely the result of a competition between pairing interactions between like nucleons and proton-neutron (p-n) interactions. The Colloquium will survey the empirical behavior of nuclei and present ways to experimentally extract the strength of p-n interactions. The pivotal role of the latter in determining the former will then be discussed in terms of the correlations of p-n interaction strengths with the onset of collectivity and a newly recognized parallelism in the filling of proton and neutron orbits.

47. APR

16

Wednesday

High-Energy Physics & RIKEN Theory Seminar

"TBA"

Presented by Adam Ritz, University of Victoria

2 pm, Small Seminar Room, Bldg. 510

Wednesday, April 16, 2014, 2:00 pm

Hosted by: Ian Lewis

48. APR

17

Thursday

RIKEN/BNL Lunch Time Talk

"TBA"

12:30 pm, Physics, Bldg. 510, Room 2-160

Thursday, April 17, 2014, 12:30 pm

Hosted by: Daniel Potonyak

49. APR

17

Thursday

RIKEN/BNL Lunch Time Talk

"TBA"

12:30 pm, Physics, Bldg. 510, Room 2-160

Thursday, April 17, 2014, 12:30 pm

Hosted by: Daniel Pitonyak

50. APR

17

Thursday

Particle Physics Seminar

"TBA"

Presented by Reina Maruyama, Yale University

3 pm, Small Seminar Room, Bldg. 510

Thursday, April 17, 2014, 3:00 pm

51. APR

18

Friday

HET/BNL Lunch Time Talk

"Pheno 2014 Practice"

Presented by Mao Zeng, Ian Lewis, Chien-Yi Chen, YITP/BNL

12 pm, Physics, Building 510, Room 2-160

Friday, April 18, 2014, 12:00 pm

Hosted by: Amarjit Soni

52. APR

18

Friday

Nuclear Physics & RIKEN Theory Seminar

"TBA"

Presented by Hong Liu, MIT

2 pm, Small Seminar Room, Bldg. 510

Friday, April 18, 2014, 2:00 pm

Hosted by: Bjoern Schenke

53. APR

22

Tuesday

Physics Colloquium

"Prospects for the physics of cold, sparse hadrons"

Presented by Craig Roberts, ANL

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, April 22, 2014, 3:30 pm

Hosted by: Peter Petreczky

Hadron physics is unique at the forefront of science in tackling a problem whose fundamental degrees of freedom have never been directly observed. This presentation will describe some of the opportunities and challenges presented by the next decade — with an upgrade at Jefferson Lab, fixed target experiments at FermiLab and worldwide discussions about an electron ion collider.

54. APR

29

Tuesday

Physics Colloquium

"Redrawing the boundary between classical and quantum mechanics"

Presented by Mishkatul Bhattacharya, Rochester Institute of Technology

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, April 29, 2014, 3:30 pm

Hosted by: Rob Pisarski

Advances at the intersection of quantum optics, nanoscience, gravitational wave interferometry and microwave technology are currently allowing experimentalists to extend the reach of quantum mechanics to large mechanical objects. As an emerging frontier in physics, macroscopic quantum mechanics is expected to yield fundamental insights as well as novel technologies. This talk will be centered around experiments on cryogenic electromechanical systems, optical resonator-cooled mechanics and levitated microparticles. Recent theoretical work on optomechanics in our group at RIT will also be discussed.

55. MAY

1

Thursday

Particle Physics Seminar

"Probing Light WIMPs with SuperCDMS"

Presented by Adam Anderson, Massachusetts Institute of Technology

3 pm, Small Seminar Room, Bldg. 510

Thursday, May 1, 2014, 3:00 pm

Hosted by: Elizabeth Worcester

The SuperCDMS experiment at the Soudan Underground Laboratory is designed to detect dark matter directly by its interaction with nuclei in cryogenic germanium detectors. The improved detectors measure particle interactions using ionization and athermal phonon signals, whose topology allows for powerful rejection of radioactive backgrounds. In this talk, I will review recent SuperCDMS results focused on light WIMPs, including an analysis of 577 kg-d of low-energy data, and an analysis of specialized high-voltage data (CDMSlite). I will also discuss plans for a larger 100 kg germanium and silicon array planned for installation at SNOLAB.

56. MAY

2

Friday

HET/BNL Lunch Time Talk

"TBA"

Presented by David Curtin, YITP, SBU

12 pm, Physics, Bldg. 510, Room 2-160

Friday, May 2, 2014, 12:00 pm

Hosted by: Amarjit Soni

57. MAY

2

Friday

Nuclear Physics & RIKEN Theory Seminar

"TBA"

Presented by Daniel Litim, University of Sussex

2 pm, Small Seminar Room, Bldg. 510

Friday, May 2, 2014, 2:00 pm

Hosted by: Bjoern Schenke

58. MAY

3

Saturday

Office of Educational Programs Event

"Science Fair"

9 am, Berkner Hall Auditorium

Saturday, May 3, 2014, 9:00 am

59. MAY

6

Tuesday

Physics Colloquium

"How Do Massive Stars Supernova?"

Presented by Adam Burrows, Princeton University

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, May 6, 2014, 3:30 pm

Hosted by: Peter Petreczky

"Core-collapse supernovae have challenged theorists and computational science for half a century. Such explosions are the source of many of the heavy elements in the Universe and the birthplace of neutron stars and stellar-mass black holes. However, determining the mechanism of explosion remains the key goal of theory. Though the synergistic operation of turbulence and neutrino heating seems implicated, and multi-dimensional simulations with some physical fidelity that have provided insight, we have yet to reproduce the phenomenon theoretically. In this talk, I will review the goals of supernova theory, the state of the field, and the contending explosion models. In the process, I will highlight the computational astrophysics that has been applied to date, and that may be necessary in the future to credibly unravel this mystery."

60. MAY

9

Friday

HET/BNL Lunch Time Talk

"TBA"

Presented by Cen Zhang, UCL, Brussels

12 pm, Physics, Building 510, Room 2-95

Friday, May 9, 2014, 12:00 pm

Hosted by: Amarjit Soni

61. MAY

13

Tuesday

Physics Colloquium

"Materials in 2-dimension and beyond"

Presented by Philip Kim, Columbia University

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, May 13, 2014, 3:30 pm

The recent advent of atomically thin 2-dimensional materials such as graphene, hexa boronitride, layered transition metal chalcogenide and many strongly correlated materials, where weak van der Waals (vdW) force holds the layers together, has provide a new opportunity of studying novel quantum phenomena in low dimensional systems. The vdW layered materials consist of covalently bonded atomic layers entities that weakly interact with other constituents. With a strong built-in anisotropy in their components, vdW materials often show a quasi-low dimensionality leading to strongly correlated electron behaviors. These materials in 2-d limits also allow us to apply new experimental techniques such as electrolyte gating, scanning potentiometry, and electromechanical magnetometry. Moreover, combination of different layered constituents may produce heterogeneous and functional materials. In this talk, we will discuss to develop the method of transferring two-dimensional atomic layers of van der Waals solids to build functional heterostacks. Novel electron transport and optoelectronic phenomena can occur across these hetero-interfaces of atomicallycontrolled quantum heterostructures.

62. MAY

14

Wednesday

Brookhaven Women In Science (BWIS) Event

"Board Meeting"

12 pm, Berkner Hall, Room D

Wednesday, May 14, 2014, 12:00 pm

Hosted by: Christina Swinson

Monthly meeting of the Brookhaven Women in Science (BWIS) board. All BWIS members and affiliates are welcome to attend.

63. MAY

18

Sunday

Movie Screening & Discussion

"Particle Fever" Documentary Screening & Panel Discussion"

2 pm, Cinema Arts Centre, 423 Park Ave., Huntington, NY

Sunday, May 18, 2014, 2:00 pm

"Particle Fever," a new documentary showcasing the hunt for the Higgs boson at CERN's Large Hadron Collider, will be hitting Long Island on Sunday, May 18, at 2 p.m. at the Cinema Arts Centre in Huntington. A panel discussion following the film will feature researchers from Brookhaven Lab and Stony Brook University who played a role in the Higgs search, along with a live video feed from CERN. After the panel discussion, the Centre will host a wine and cheese event to provide attendees with an opportunity to talk with the scientists about their work in an informal setting. Tickets for the event are not yet available as of March 10, but will be announced when they go on sale.

64. MAY

19

Monday

Annual Users' Meeting

"Joint NSLS/CFN Annual Users' Meeting"

8 am, Berkner Hall Auditorium

Monday, May 19, 2014, 8:00 am

Hosted by: NSLS and CFN Users Executive Committees

65. MAY

20

Tuesday

Annual Users' Meeting

"Joint NSLS/CFN Annual Users' Meeting"

8 am, Berkner Hall Auditorium

Tuesday, May 20, 2014, 8:00 am

Hosted by: NSLS and CFN Users Executive Committees

66. MAY

21

Wednesday

Annual Users' Meeting

"Joint NSLS/CFN Annual Users' Meeting"

8 am, Berkner Hall Auditorium

Wednesday, May 21, 2014, 8:00 am

Hosted by: NSLS and CFN Users Executive Committees

67. JUN

2

Monday

Office of Educational Programs Event

"DOE Summer Intern Program Begins"

8 am, Berkner Hall Auditorium

Monday, June 2, 2014, 8:00 am

68. JUN

5

Thursday

Office of Educational Programs Event

"OSSP Celebration"

4:30 pm, Berkner Hall Auditorium

Thursday, June 5, 2014, 4:30 pm

Hosted by: Mel Morris

69. JUN

10

Tuesday

Particle Physics Seminar

"The JUNO Reactor Neutrino Experiment"

Presented by Zeyuan Yu, Institute of High Energy Physics, Beijing, China, China

11 am, Small Seminar Room, Bldg. 510

Tuesday, June 10, 2014, 11:00 am

Hosted by: Elizabeth Worcester

Jiangmen Underground Neutrino Observatory (JUNO) is a medium baseline reactor neutrino experiment, to determine the neutrino mass hierarchy better than 3 sigma with 20kt liquid scintillator and six year data taking. The seminar will focus on the measurement of neutrino mass hierarchy with a short discussion on other possible physics topics, such as solar neutrino, supernova neutrino, etc. The progress of JUNO will also be reported, including project status, detector conceptual design, civil construction, electronics and offline software progress.

70. JUN

10

Tuesday

Physics Colloquium

"TBA"

Presented by Chao-Lin Kuo, Stanford University

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, June 10, 2014, 3:30 pm

Hosted by: Peter Petreczky

71. JUN

17

Tuesday

Physics Colloquium

"TBA"

Presented by Alexander Kusenko, UCLA

3:30 pm, Large Seminar Room, Bldg. 510

Tuesday, June 17, 2014, 3:30 pm

Hosted by: Peter Petreczky

72. AUG

6

Wednesday

Office of Educational Programs Event

"DOE Summer Intern Poster Session"

9 am, Berkner Hall Auditorium

Wednesday, August 6, 2014, 9:00 am

73. AUG

7

Thursday

Office of Educational Programs Event

"DOE Summer Intern Poster Session"

9 am, Berkner Hall Auditorium

Thursday, August 7, 2014, 9:00 am