Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN =200 GeV

PHENIX Collaboration

doi:10.1103/PhysRevC.94.064901

Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN =200 GeV

PHENIX Collaboration

University of Colorado Boulder
Joint Institute for Nuclear Research, Dubna
MST-8, Los Alamos National Laboratory
UMass Amherst
University of Michigan, Ann Arbor
Stony Brook University
RIKEN Nishina Center for Accelerator-Based Science
Riken BNL Research Center
University of Tokyo
New Mexico State University
Howard University
Columbia University
High Energy Accelerator Research Organization (KEK)
Kyoto University
Iowa State University
Brookhaven National Laboratory
Ip Paris
Oak Ridge National Laboratory
Kurchatov Institute
Florida Institute of Technology
University of California, Riverside
University of New Mexico
Abilene Christian University
Baruch College
Petersburg Nuclear Physics Institute (PNPI)
University of Münster
Vanderbilt University
St. Petersburg State Polytechnical University
Kurchatov Institute
Yonsei University
University of Illinois at Urbana-Champaign
Chonbuk National University
Seoul National University
Bhabha Atomic Research Centre
Lund University
University of Tsukuba
Weizmann Institute of Science Israel
Eötvös Loránd University
Hungarian Academy of Sciences
Ohio University
Florida State University
University of São Paulo
University of Maryland, College Park
Lawrence Livermore National Laboratory
Rikkyo University
Muhlenberg College
Charles University
Nagasaki Institute of Applied Science
Czech Technical University in Prague
Banaras Hindu University
University of Tennessee
Augustana University
Hiroshima University
Ewha Womans University
Tsinghua University
Japan Atomic Energy Agency
Georgia State University
Korea University
University of Debrecen
Myongji University
Université Paris-Saclay
Hanyang University
University of Jyväskylä
Sungkyunkwan University
China Institute of Atomic Energy
University of Zagreb
Institute of Physics of the Czech Academy of Sciences
Tokyo Institute of Technology
Károly Róberts University College
Institute for Nuclear Research of the Russian Academy of Sciences
Institut Pierre Simon Laplace, CNRS and CEA
National Research Nuclear University MEPhI
Université Blaise Pascal
Waseda University
Nara Women's University
Lahore University of Management Sciences

Research output: Contribution to journal › Article › peer-review

110 Citations (Scopus)

Abstract

The PHENIX experiment at the BNL Relativistic Heavy Ion Collider has measured second- and third-order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au+Au collisions at sNN=200 GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of 0.4<pT<4.0 GeV/c. At low pT the second-order coefficients, v2, are similar to the ones observed in hadrons. Third-order coefficients, v3, are nonzero and almost independent of centrality. These new results on v2 and v3, combined with previously published results on yields, are compared to model calculations that provide yields and asymmetries in the same framework. Those models are challenged to explain simultaneously the observed large yield and large azimuthal anisotropies.

Original language	English
Article number	064901
Journal	Physical Review C
Volume	94
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.94.064901
Publication status	Published - 6 Dec 2016

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10.1103/PhysRevC.94.064901

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@article{87452b5f7c92431ea3d9f8dba16a85c4,

title = "Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN =200 GeV",

abstract = "The PHENIX experiment at the BNL Relativistic Heavy Ion Collider has measured second- and third-order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au+Au collisions at sNN=200 GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of 0.4",

author = "\{PHENIX Collaboration\} and A. Adare and S. Afanasiev and C. Aidala and Ajitanand, \{N. N.\} and Y. Akiba and R. Akimoto and H. Al-Bataineh and J. Alexander and M. Alfred and H. Al-Ta'Ani and A. Angerami and K. Aoki and N. Apadula and Y. Aramaki and H. Asano and Aschenauer, \{E. C.\} and Atomssa, \{E. T.\} and R. Averbeck and Awes, \{T. C.\} and B. Azmoun and V. Babintsev and M. Bai and G. Baksay and L. Baksay and Bandara, \{N. S.\} and B. Bannier and Barish, \{K. N.\} and B. Bassalleck and Basye, \{A. T.\} and S. Bathe and V. Baublis and C. Baumann and S. Baumgart and A. Bazilevsky and M. Beaumier and S. Beckman and S. Belikov and R. Belmont and R. Bennett and A. Berdnikov and Y. Berdnikov and Bickley, \{A. A.\} and Blau, \{D. S.\} and Bok, \{J. S.\} and K. Boyle and O. Drapier and F. Fleuret and M. Gonin and \{Granier De Cassagnac\}, R. and M. Nguyen",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = dec,

day = "6",

doi = "10.1103/PhysRevC.94.064901",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

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TY - JOUR

T1 - Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN =200 GeV

AU - PHENIX Collaboration

AU - Adare, A.

AU - Afanasiev, S.

AU - Aidala, C.

AU - Ajitanand, N. N.

AU - Akiba, Y.

AU - Akimoto, R.

AU - Al-Bataineh, H.

AU - Alexander, J.

AU - Alfred, M.

AU - Al-Ta'Ani, H.

AU - Angerami, A.

AU - Aoki, K.

AU - Apadula, N.

AU - Aramaki, Y.

AU - Asano, H.

AU - Aschenauer, E. C.

AU - Atomssa, E. T.

AU - Averbeck, R.

AU - Awes, T. C.

AU - Azmoun, B.

AU - Babintsev, V.

AU - Bai, M.

AU - Baksay, G.

AU - Baksay, L.

AU - Bandara, N. S.

AU - Bannier, B.

AU - Barish, K. N.

AU - Bassalleck, B.

AU - Basye, A. T.

AU - Bathe, S.

AU - Baublis, V.

AU - Baumann, C.

AU - Baumgart, S.

AU - Bazilevsky, A.

AU - Beaumier, M.

AU - Beckman, S.

AU - Belikov, S.

AU - Belmont, R.

AU - Bennett, R.

AU - Berdnikov, A.

AU - Berdnikov, Y.

AU - Bickley, A. A.

AU - Blau, D. S.

AU - Bok, J. S.

AU - Boyle, K.

AU - Drapier, O.

AU - Fleuret, F.

AU - Gonin, M.

AU - Granier De Cassagnac, R.

AU - Nguyen, M.

PY - 2016/12/6

Y1 - 2016/12/6

N2 - The PHENIX experiment at the BNL Relativistic Heavy Ion Collider has measured second- and third-order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au+Au collisions at sNN=200 GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of 0.4

AB - The PHENIX experiment at the BNL Relativistic Heavy Ion Collider has measured second- and third-order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au+Au collisions at sNN=200 GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of 0.4

U2 - 10.1103/PhysRevC.94.064901

DO - 10.1103/PhysRevC.94.064901

M3 - Article

AN - SCOPUS:85006168080

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064901

ER -

Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN =200 GeV

Abstract

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