Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN =200 GeV

PHENIX Collaboration

doi:10.1103/PhysRevC.93.051902

Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN =200 GeV

PHENIX Collaboration

Physics Education

University of Colorado Boulder
Joint Institute for Nuclear Research
University of Massachusetts
University of Michigan, Ann Arbor
Stony Brook University
RIKEN
Riken BNL Research Center
New Mexico State University
Kyoto University
The University of Tokyo
CNRS-IN2P3
Oak Ridge National Laboratory
Brookhaven National Laboratory
NRC Kurchatov Institute IHEP
Florida Institute of Technology
University of California at Riverside
University of New Mexico
Abilene Christian University
City University of New York
Petersburg Nuclear Physics Institute (PNPI)
University of Münster
Vanderbilt University
Peter the Great St. Petersburg Polytechnic University
Yonsei University
Los Alamos National Laboratory
Columbia University
Homi Bhabha National Institute
Lund University
University of Tsukuba

Research output: Contribution to journal › Journal article › peer-review

49 Scopus citations

Abstract

Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4}, and v4{Ψ2} for identified particles (π±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities n{ΨmPP} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

Original language	English
Article number	051902
Journal	Physical Review C
Volume	93
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.93.051902
State	Published - 2016.05.31

Quacquarelli Symonds(QS) Subject Topics

Physics & Astronomy

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10.1103/PhysRevC.93.051902

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@article{aa60457903a6408a9d57567a667f732d,

title = "Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN =200 GeV",

abstract = "Measurements of the anisotropic flow coefficients v2\{Ψ2\},v3\{Ψ3\},v4\{Ψ4\}, and v4\{Ψ2\} for identified particles (π±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn\{Ψm\}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn\{Ψm\}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn\{Ψm\} and spatial eccentricities sn\{Ψm\} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities n\{ΨmPP\} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.",

author = "\{PHENIX Collaboration\} and A. Adare and S. Afanasiev and C. Aidala and Ajitanand, \{N. N.\} and Y. Akiba and H. Al-Bataineh and J. Alexander and K. Aoki and Y. Aramaki 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 Barish, \{K. N.\} and B. Bassalleck and Basye, \{A. T.\} and S. Bathe and V. Baublis and C. Baumann and A. Bazilevsky and S. Belikov and R. Belmont and R. Bennett and A. Berdnikov and Y. Berdnikov and Bickley, \{A. A.\} and Bok, \{J. S.\} and K. Boyle and Brooks, \{M. L.\} and H. Buesching and V. Bumazhnov and G. Bunce and S. Butsyk and Camacho, \{C. M.\} and S. Campbell and Chen, \{C. H.\} and Chi, \{C. Y.\} and M. Chiu and Choi, \{I. J.\} and Choudhury, \{R. K.\} and P. Christiansen and T. Chujo and P. Chung and O. Chvala and V. Cianciolo and Kim, \{E. J.\}",

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

year = "2016",

month = may,

day = "31",

doi = "10.1103/PhysRevC.93.051902",

language = "English",

volume = "93",

journal = "Physical Review C",

issn = "2469-9985",

number = "5",

}

TY - JOUR

T1 - Measurement of the higher-order anisotropic flow coefficients for identified hadrons 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 - Al-Bataineh, H.

AU - Alexander, J.

AU - Aoki, K.

AU - Aramaki, Y.

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 - Barish, K. N.

AU - Bassalleck, B.

AU - Basye, A. T.

AU - Bathe, S.

AU - Baublis, V.

AU - Baumann, C.

AU - Bazilevsky, A.

AU - Belikov, S.

AU - Belmont, R.

AU - Bennett, R.

AU - Berdnikov, A.

AU - Berdnikov, Y.

AU - Bickley, A. A.

AU - Bok, J. S.

AU - Boyle, K.

AU - Brooks, M. L.

AU - Buesching, H.

AU - Bumazhnov, V.

AU - Bunce, G.

AU - Butsyk, S.

AU - Camacho, C. M.

AU - Campbell, S.

AU - Chen, C. H.

AU - Chi, C. Y.

AU - Chiu, M.

AU - Choi, I. J.

AU - Choudhury, R. K.

AU - Christiansen, P.

AU - Chujo, T.

AU - Chung, P.

AU - Chvala, O.

AU - Cianciolo, V.

AU - Kim, E. J.

PY - 2016/5/31

Y1 - 2016/5/31

N2 - Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4}, and v4{Ψ2} for identified particles (π±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities n{ΨmPP} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

AB - Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4}, and v4{Ψ2} for identified particles (π±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities n{ΨmPP} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

UR - https://www.scopus.com/pages/publications/84971291485

U2 - 10.1103/PhysRevC.93.051902

DO - 10.1103/PhysRevC.93.051902

M3 - Journal article

AN - SCOPUS:84971291485

SN - 2469-9985

VL - 93

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 051902

ER -

Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN =200 GeV

Abstract

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