BNL Home
  • RHIC

    Brookhaven physicists are using detectors at the Relativistic Heavy Ion Collider to explore how the matter that makes up atomic nuclei behaved just after the Big Bang.

  • ATLAS

    Brookhaven physicists and engineers are collaborators in the ATLAS experiment at CERN's Large Hadron Collider.

  • Neutrinos

    LBNE and the Daya Bay Neutrino Experiments seek to understand the subtle oscillations of neutrinos, ghost-like particles formed in the heart of stars

  • Cosmology

    In the LSST and BOSS experiments, Brookhaven physicists seek to measure and constrain the properties of dark matter, dark energy and the standard cosmological model.

Nuclear Physics

PHENIX

Responsibile for the operation and  physics exploitation of the PHENIX experiment at RHIC.

STAR

Responsibile for the operation and  physics exploitation of the STAR experiment at RHIC.

RHIC Spin

Leads, supports, and provides for the common requirements of the RHIC spin program, particularly for polarimetry.

RIKEN BNL Research Center

Conducts quantum chromodynamics and proton spin structure research.

Nuclear Theory

Conducts research to understand many body aspects of QCD, including the properties of hot and dense matter as well high gluon density matter.  

RHIC Computing Facility

Provides computing services for experiments at RHIC, and the Large Synoptic Survey Telescope project.

High-Energy Physics

Cosmology & Astrophysics

Solving problems in observational cosmology: how to measure and constrain properties of dark matter, dark energy and the standard cosmological model.

Electronic Detector

Studies very rare processes at the Intensity Frontier.

Omega

Group members are collaborators on the LHC ATLAS experiment.

Physics Application

Develops physics applications software for the LHC ATLAS experiment.

High-Energy Theory

Focuses on providing theoretical foundation for the search for physics beyond the standard model, including lattice QCD calculations of key quantities required for this quest.

ATLAS Computing Facility

Provides computing services for U.S. ATLAS.

High-Energy Physics

Baryonic Oscillation Spectroscopic Survey

BOSS studies dark energy—the force thought to be responsible for the universe’s accelerating expansion.

Dark Energy Survey

Seeks to probe the origin of the accelerating universe and uncover the nature of dark energy by measuring the 14-billion-year history of cosmic expansion.

Large Synoptic Survey Telescope

A 3.2 gigapixel camera mounted in a  ground-based telescope designed to produce the widest, densest, and most complete images of our universe ever captured.

Deep Underground Neutrino Experiment

An international collaboration working to precisely measure neutrino oscillations.

ATLAS

An experiment at CERN's Large Hadron Collider designed to detect particles created by proton-proton collisions.

Daya Bay Neutrino Experiment

An international collaboration studying the subtle transformations of neutrinos.

MicroBooNE

Measures low energy neutrino cross sections and investigates low energy excess events observed by the MiniBooNE experiment.

Muon g-2

A high precision measurement of the muon's g-2 value. A deviation between theory and observed value will suggest the existence of new particles.

Mu2e

Experiment which directly probes the Intensity Frontier and aids research on the Energy and Cosmic frontiers with precision measurements to characterize properties of new particles.

Nuclear Physics

PHENIX

An experiment at the Relativistic Heavy Ion Collider designed to explore quark gluon plasma.

STAR

An experiment at the Relativistic Heavy Ion Collider designed to explore quark gluon plasma.

Electron Ion Collider (Future)

Plans for the world's first electron-nucleus collider, also known as eRHIC, call for the addition of a 5 to 10 GeV electron ring inside the RHIC tunnel.

The Physics Department is part of Brookhaven's Nuclear & Particle Physics Directorate.

Seminars & Colloquia

  1. FEB

    14

    Tuesday

    Physics Colloquium

    "TBA"

    Presented by Aleksi Kurkela, CERN and Univ. of Stavenger

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

    Tuesday, February 14, 2017, 3:30 pm

    Hosted by: 'Robert Pisarski'

  2. FEB

    28

    Tuesday

    Physics Colloquium

    "The Experimental Challenge of 21 cm Cosmology, host A.Nomerotski"

    Presented by Miguel Morales, University of Washington

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

    Tuesday, February 28, 2017, 3:30 pm

    Hosted by: 'Andrei Nomerotski'

  3. MAR

    14

    Tuesday

    Physics Colloquium

    "TBA"

    Presented by Bob McKeown, Jefferson Lab

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

    Tuesday, March 14, 2017, 3:30 pm

    Hosted by: 'Andrei Nomerotski'

  4. MAR

    28

    Tuesday

    Physics Colloquium

    "TBA"

    Presented by Carl Bender, Washington University

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

    Tuesday, March 28, 2017, 3:30 pm

    Hosted by: 'Robert Pisarski'

  1. JAN

    20

    Today

    Nuclear Theory Seminar

    "Helicity Evolution at Small x and the Proton Spin"

    Presented by Yuri Kovchegov, Ohio State University

    2 pm, Small Seminar Room, Bldg. 510

    Friday, January 20, 2017, 2:00 pm

    Hosted by: ''Heikki Mantysaari''

    We construct small-x evolution equations which can be used to calculate quark and anti-quark helicity TMDs and PDFs, along with the g_1 structure function. These evolution equations resum powers of alpha_s ln^2 (1/x) in the polarization-dependent evolution along with the powers of alpha_s ln (1/x) in the unpolarized evolution which includes saturation effects. The equations are written in an operator form in terms of polarization-dependent Wilson line-like operators. While the equations do not close in general, they become closed and self-contained systems of non-linear equations in the large-N_c and large-N_c & N_f limits. After solving the large-N_c equations numerically we obtain the following small-x asymptotics for the flavor-singlet g_1 structure function along with quarks helicity PDFs and TMDs (in absence of saturation effects): g_1^S (x, Q^2) ~ \Delta q^S (x, Q^2) ~ g_{1L}^S (x, k_T^2) ~ ( 1/x )^{alpha_h} \approx t( 1/x )^{2.31 \sqrt{\alpha_s N_c/(2pi}} This result is valid for all flavors. We also give an estimate of how much of the proton's spin may reside at small x and what impact this has on the so-called ``spin crisis.'' This work would help one better understand longitudinal polarization data to be obtained at the proposed Electron-Ion Collider (EIC).

  2. FEB

    16

    Thursday

    Nuclear Theory/RIKEN Seminar

    "TBA"

    Presented by Bowen Xiao, CCNU

    2 pm, Small Seminar Room, Bldg. 510

    Thursday, February 16, 2017, 2:00 pm

    Hosted by: 'Heikki Mantysaari'

  3. APR

    7

    Friday

    Nuclear Theory/RIKEN Seminar

    "TBA"

    Presented by Dirk Rischke, Johann Wolfgang Goethe-Universitat

    2 pm, Small Seminar Room, Bldg. 510

    Friday, April 7, 2017, 2:00 pm

    Hosted by: 'Heikki Mantysaari'

  1. FEB

    1

    Wednesday

    Particle Physics Seminar - SB/BNL Joint Cosmo Seminar

    "TBA"

    Presented by Elisabeth Krause, SLAC

    1:30 pm, Stony Brook University

    Wednesday, February 1, 2017, 1:30 pm

  2. FEB

    8

    Wednesday

    Particle Physics Seminar - SB/BNL Joint Cosmo Seminar

    "TBA"

    Presented by Tim Eifler, JPL/Caltech

    1:30 pm, Stony Brook University

    Wednesday, February 8, 2017, 1:30 pm

  3. FEB

    15

    Wednesday

    Particle Physics Seminar - SB/BNL Joint Cosmo Seminar

    "TBA"

    Presented by Adrian Liu, Berkeley

    1:30 pm, Stony Brook University

    Wednesday, February 15, 2017, 1:30 pm

  4. FEB

    28

    Tuesday

    Physics Colloquium

    "The Experimental Challenge of 21 cm Cosmology, host A.Nomerotski"

    Presented by Miguel Morales, University of Washington

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

    Tuesday, February 28, 2017, 3:30 pm

    Hosted by: 'Andrei Nomerotski'

  5. MAR

    1

    Wednesday

    Particle Physics Semiar SB/BNL Joint Cosmo Seminar

    "TBA"

    Presented by Will Farr, Birmingham

    1:30 pm, Stony Brook University

    Wednesday, March 1, 2017, 1:30 pm

  6. JUL

    10

    Monday

    Office of Educational Programs Event

    "High School Research Program Begins"

    8:30 am, Hamilton Seminar Room, Bldg. 555

    Monday, July 10, 2017, 8:30 am