Wednesday, March 4, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Wednesday, March 4, 2015, 2:00 pm

Hosted by: Sally Dawson

Saturday, March 7, 2015, 9:00 am

Hosted by: Catherine Osiecki

Saturday, March 7, 2015, 9:30 am

Invited speakers: Dr. Nancy Goroff and Dr. Ágnes Mócsy Panelists: Nathalie Bouet, Betsy Dowd, Kathleen Flint Elm, Deena Ghoul, Arnavi Varshney,Glenda Denicolo, Marci Lobel, Jennifer McDermott, Evgeniya Rubin, Megan Russ, Eva Songcuan Speed date a Scientist: selected panelists will be available for a one on one Q&A

Tuesday, March 10, 2015, 8:30 am

Hosted by: Christina Swinson

Open to Stony Brook and BNL early career scientists and Postdocs, CARE 2015 will focus on career development. The workshop will explore the options available to early-career scientists in addition to the traditional R&D and academic pathways. Invited speakers will describe their career paths and discuss the special requirements and planning involved in achieving their goals. An interactive session will guide participants in developing prototype Individual Development Plans (IDPs).

Tuesday, March 10, 2015, 11:00 am

Hosted by: Deyu Lu

Solar energy is the most promising source of renewable, clean energy to replace the current reliance on fossil fuels. Ferroelectric (FE) materials have recently attracted increased attention as a candidate class of materials for use in photovoltaic devices. Their strong inversion symmetry breaking due to spontaneous polarization allows for excited carrier separation by the bulk of the material and voltages higher than the band gap (Eg), which may allow efficiencies beyond the Shockley-Queisser limit. Ferroelectric oxides are also robust and can be fabricated using low cost methods such as sol-gel thin film deposition and sputtering. Recent work has shown how a decrease in ferroelectric layer thickness and judicious engineering of domain structures and FE-electrode interfaces can dramatically increase the current harvested from FE absorber materials. Further improvements have been blocked by the wide band gaps (Eg =2.7-4 eV) of FE oxides, which allow the use of only 8-20% of the solar spectrum and drastically reduce the upper limit of photovoltaic efficiency. In this talk, I will discuss new insight into the bulk photovoltaic effect, and materials design to enhance the photovoltaic efficiency. We calculate from first principles the current arising from the "shift current" mechanism, and demonstrate that it quantitatively explains the observed current. Then, we analyze the electronic features that lead to strong photovoltaic effects. Finally, we present new oxides that are strongly polar yet have band gaps in the visible range, offering prospects for greatly enhanced bulk photovoltaic effects. Please note: If anyone would like to schedule a meeting with Dr. Rappe, please contact Deyu Lu (dlu@bnl.gov)

Tuesday, March 10, 2015, 2:00 pm

Hosted by: Matthew Eisaman

The localized surface plasmon resonance (LSPR), arising due to the collective oscillation of free electrons in metal nanoparticles, is a sensitive probe of the nanostructure and its surrounding dielectric medium. Synthetic strategies for developing surfactant free nanoparticles providing direct access to the metallic surface that harvest the localized surface plasmons will be discussed first followed by the applications. It is well known that the hot carriers generated as a result of plasmonic excitation can participate and catalyze chemical reactions. One such reaction is the dissociation of hydrogen. By the virtue of plasmonic excitation, an inert metal like Au can become reactive enough to support the dissociation of hydrogen at room temperature, thereby making it possible to optically detect this explosive gas.1 The mechanism of sensing is still not well understood. However, a potential hypothesis is that the dissociation of hydrogen may lead to the formation of a metastable gold hydride with optical properties distinct from the initial Au nanostructures, causing a reversible increase in transmission and blue shift in LSPR. It will also be shown that by tracking the LSPR of bare Au nanoparticles grown on a substrate, the adsorption of halide ions on Au can be detected exclusively. The shift in LSPR frequency is attributed to changes in electron density rather than the morphology of the nanostructures, which is often the case.

Wednesday, March 11, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Wednesday, March 11, 2015, 12:00 pm

Hosted by: BSA

Pianist Di Wu and violinist Solomiya Ivakhiv will perform in concert at the U.S. Department of Energy's Brookhaven National Laboratory on Wednesday, March 11, at noon in Berkner Hall. Sponsored by Brookhaven Science Associates (BSA), the event is free and open to the public. All visitors to the Laboratory 16 and older must bring a photo I.D.

Wednesday, March 11, 2015, 12:00 pm

Contact the Recreation Office, ext 2873 to register. Light refreshments will be served.

Thursday, March 12, 2015, 6:30 pm

Friday, March 13, 2015, 2:00 pm

Hosted by: Soeren Schlichting

: In this talk we shall present holographic formulas for the transport coefficients κ and τπ present in the second-order derivative expansion of relativistic hydrodynamics in curved spacetime associated with a non-conformal strongly coupled plasma described holographically by an Einstein+Scalar action in the bulk. These coefficients are computed as functions of the temperature in a bottom-up non-conformal model that is tuned to reproduce lattice QCD thermodynamics at zero baryon chemical potential. We directly compute, besides the speed of sound, 6 other transport coefficients that appear at second-order in the derivative expansion. We also give an estimate for the temperature dependence of 11 other transport coefficients taking into account the simplest contribution from non-conformal effects that appear near the QCD crossover phase transition. Using these results, we construct an Israel-Stewart-like theory in flat spacetime containing 13 of these 17 transport coefficients that should be suitable for phenomenological applications in the context of numerical hydrodynamic simulations of the strongly-coupled, non-conformal quark-gluon plasma. Using several different approximations, we give parametrizations for the temperature dependence of all the second-order transport coefficients that appear in this theory in a format that can be easily implemented in existing numerical hydrodynamic codes

Wednesday, March 18, 2015, 8:30 am

Wednesday, March 18, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Wednesday, March 18, 2015, 2:00 pm

Hosted by: Chien-Yi Chen

Friday, March 20, 2015, 2:00 pm

Hosted by: Soeren Schlichting

Collectivity in high multiplicity pp and p-Pb collisions is the most unexpected discovery at the LHC, its origin is still an open question. In heavy ion collisions, collectivity is attributed to final state effects due to the presence of a hot and dense QCD medium, and it is well described by viscous hydrodynamical calculations with fluctuating initial state geometries. Surprisingly, calculations which employ hydrodynamics reproduce qualitatively well the features of p-Pb data, but, the applicability of hydro in small systems faces conceptual problems. This is not the case of other approaches which do not require a medium to be formed and also are able to reproduce qualitatively well some features of data. In this talk it will be shown that multi-parton interactions and color reconnection (CR) produce flow-like effects in high multiplicity pp collisions. A study of the transverse momentum (pT) distribution of identified hadrons as a function of the event multiplicity will be presented. This comprises studies of the average pT vs hadron mass and number of constituent quarks, and a pT differential study using the Boltzmann-Gibbs Blast-Wave model. A comparison between hydro and color reconnection calculations will be presented. In this context, the results from the same study using LHC data (pp, p-Pb and Pb-Pb collisions) will be discussed.

Wednesday, March 25, 2015, 2:00 pm

Friday, March 27, 2015, 12:00 pm

Hosted by: Amarjit Soni

Saturday, March 28, 2015, 9:00 am

Hosted by: Susan Frank

Wednesday, April 1, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Thursday, April 2, 2015, 3:00 pm

Hosted by: Elizabeth Worcester

The IceCube Neutrino Observatory is the world's largest neutrino detector. Although designed to detect TeV �" PeV scale neutrinos from astrophysical accelerators, IceCube's DeepCore infill array permits searches for dark matter and measurements of neutrino oscillations in the 10-100 GeV range. The most recent measurements of muon neutrino disappearance with IceCube DeepCore will be presented, and prospects for future neutrino physics measurements with IceCube and the proposed PINGU array will be discussed

Friday, April 3, 2015, 11:00 am

Hosted by: Ketevi A. Assamagan

Friday, April 3, 2015, 2:00 pm

Hosted by: Soeren Schlichting

A remarkable observation from RHIC and the LHC is that the quark-gluon plasma produced in heavy-ion collisions behaves as a strongly coupled and nearly ideal liquid. Data also suggests that the debris produced by proton-nucleus collisions can also behave as a liquid. Understanding the dynamics responsible for the rapid equilibration of such tiny droplets is an outstanding problem. In recent years holography has emerged as a powerful tool to study non-equilibrium phenomena, mapping challenging quantum dynamics onto the classical dynamics of gravitational fields in one higher dimension. In the dual gravitational description the process of quark-gluon plasma formation and equilibration maps onto the process of gravitational collapse and black hole formation. I will describe how one can apply techniques and lessons learned from numerical relativity to holography and present recent work on holographic models of high energy collisions and the applicability of hydrodynamics to tiny droplets of quark-gluon plasma.

Wednesday, April 8, 2015, 2:00 pm

Friday, April 10, 2015, 12:00 pm

Hosted by: Amarjit Soni

Friday, April 10, 2015, 2:00 pm

Hosted by: Soeren Schlichting

Wednesday, April 15, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Friday, April 17, 2015, 12:00 pm

Hosted by: Amarjit Soni

Friday, April 17, 2015, 2:00 pm

Hosted by: Soeren Schlichting

Wednesday, April 22, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Friday, April 24, 2015, 12:00 pm

Hosted by: Amarjit Soni

Tuesday, April 28, 2015, 4:00 pm

Hosted by: Peter Wanderer

Wednesday, April 29, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Friday, May 1, 2015, 12:00 pm

Hosted by: Amarjit Soni

Wednesday, May 6, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Friday, May 8, 2015, 12:00 pm

Hosted by: Amarjit Soni

Wednesday, May 13, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Wednesday, May 13, 2015, 2:00 pm

Hosted by: CheinYi Chen

Wednesday, May 20, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Friday, May 22, 2015, 12:00 pm

Hosted by: Amarjit Soni

Wednesday, May 27, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Friday, May 29, 2015, 12:00 pm

Hosted by: Amarjit Soni

Sunday, May 31, 2015, 11:45 pm

Wednesday, June 3, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Wednesday, June 10, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Wednesday, June 17, 2015, 10:00 am

Play group will sometimes schedule different types of play dates at various venues. To see the schedule and join, please use https://www.facebook.com/groups/241354149387588/#!/groups/241354149387588/ and open 'BNL Spouses and Kids' and sign in. You do need an established Facebook account in order to do so.

Thursday, July 30, 2015, 8:00 am

Hosted by: Ernie Lewis

Friday, July 31, 2015, 8:00 am

Hosted by: Ernie Lewis

Wednesday, September 30, 2015, 11:45 pm

Monday, October 12, 2015, 9:00 am

Hosted by: Tony Wong

Tuesday, October 13, 2015, 9:00 am

Hosted by: Tony Wong

Wednesday, October 14, 2015, 9:00 am

Hosted by: Tony Wong

Thursday, October 15, 2015, 9:00 am

Hosted by: Tony Wong

Friday, October 16, 2015, 9:00 am

Hosted by: Tony Wong