Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV

The ALICE collaboration

doi:10.1007/JHEP09(2018)006

Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV

The ALICE collaboration

Sección de Física

CERN
Variable Energy Cyclotron Centre
University of California at Berkeley
Academy of Sciences of the Czech Republic
University of Lund
Panjab University
Politecnico di Torino
Indian Institute of Technology Bombay
Korea Institute of Science and Technology Information
Yale University
Alikhanov Institute for Theoretical and Experimental Physics
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Universidade Estadual de Campinas
Russian Research Centre Kurchatov Institute
Sezione INFN
Universidad Nacional Autónoma de México
COMSATS University Islamabad
Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
National Institute for Nuclear Physics
Bogolyubov Institute for Theoretical Physics Nasu
University of Bergen
Goethe University Frankfurt
St. Petersburg State University
Central China Normal University
National Institute for Physics and Nuclear Engineering
University of Birmingham
University of Münster
Ruprecht-Karls-Universität Heidelberg
Creighton University
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University of Houston
Lawrence Berkeley National Laboratory
Nantes Université
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Technische Universität München
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Department of Physics Aligarh Muslim University
Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
Gangneung-Wonju National University
Inha University
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Université Paris-Saclay Centre d’ Études de Saclay (CEA)
Rheinische Friedrich-Wilhelms-Universität Bonn
National Institute of Science Education and Research
Hungarian Academy of Sciences
STFC Daresbury Laboratory
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University of Copenhagen
Institute for Subatomic Physics of Utrecht University
Université de Strasbourg
Benemérita Universidad Autónoma de Puebla
Universidad Autonoma de Sinaloa
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University of Tennessee
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Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
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Pontifical Catholic Univ. of Peru
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Saha Institute of Nuclear Physics
Universite Claude Bernard Lyon 1
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Slovak Academy of Sciences
Université Grenoble Alpes
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Chicago State University
Universidade Federal do Rio Grande do Sul
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Warsaw University of Technology
A. I. Alikhanyan National Science Laboratory (YereVan Physics Institute) Foundation
Tokyo University
Nagasaki Institute of Applied Science
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Sejong University
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Jeonbuk National University
California Polytechnic State University, San Luis Obispo
Suranaree University of Technology
University of South-Eastern Norway
China Institute of Atomic Energy
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University of Wrocław
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Eberhard Karls Universität Tübingen
Hiroshima University
Nara Women's University
Chinese Academy of Sciences
Indonesian Institute of Sciences

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

80 Scopus citations

Abstract

The elliptic (v₂), triangular (v₃), and quadrangular (v₄) flow coefficients of π^±, K^±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, p_T, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π^±, K^±, and p + p ¯. For p_T< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < p_T < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v₂, which tests both particle mass dependence and type scaling, follows p + p ¯ v₂ at low p_T and π^±v₂ at intermediate p_T. The evolution of the shape of v_n(p_T) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π^±, K^±, and p + p ¯ for p_T < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for p_T < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for p_T < 1 GeV/c. A comparison to v_n coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].

Original language	English
Article number	6
Journal	Journal of High Energy Physics
Volume	2018
Issue number	9
DOIs	https://doi.org/10.1007/JHEP09(2018)006
State	Published - 1 Sep 2018

Keywords

Heavy Ion Experiments

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10.1007/JHEP09(2018)006

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@article{87588830920f413abb6062f12908aef0,

title = "Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV",

abstract = "The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, pT, at different collision centrality intervals between 0–70\%, including ultra-central (0–1\%) collisions for π±, K±, and p + p ¯. For pT< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < pT < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v2, which tests both particle mass dependence and type scaling, follows p + p ¯ v2 at low pT and π±v2 at intermediate pT. The evolution of the shape of vn(pT) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π±, K±, and p + p ¯ for pT < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for pT < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for pT < 1 GeV/c. A comparison to vn coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].",

keywords = "Heavy Ion Experiments",

author = "\{The ALICE collaboration\} and S. Acharya and Acosta, \{F. T.\} and D. Adamov{\'a} and J. Adolfsson and Aggarwal, \{M. M.\} and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and Ahn, \{S. U.\} and S. Aiola and A. Akindinov and M. Al-Turany and Alam, \{S. N.\} and Albuquerque, \{D. S.D.\} and D. Aleksandrov and B. Alessandro and \{Alfaro Molina\}, R. and Y. Ali and A. Alici and A. Alkin and J. Alme and T. Alt and L. Altenkamper and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and D. Andreou and Andrews, \{H. A.\} and A. Andronic and M. Angeletti and V. Anguelov and C. Anson and T. Anti{\v c}i{\'c} and F. Antinori and P. Antonioli and R. Anwar and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arnold, \{O. W.\} and Arsene, \{I. C.\} and M. Arslandok and B. Audurier and A. Augustinus and R. Averbeck and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",

year = "2018",

month = sep,

day = "1",

doi = "10.1007/JHEP09(2018)006",

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "9",

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TY - JOUR

T1 - Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV

AU - The ALICE collaboration

AU - Acharya, S.

AU - Acosta, F. T.

AU - Adamová, D.

AU - Adolfsson, J.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, S. U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Albuquerque, D. S.D.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfaro Molina, R.

AU - Ali, Y.

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Altenkamper, L.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andrews, H. A.

AU - Andronic, A.

AU - Angeletti, M.

AU - Anguelov, V.

AU - Anson, C.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anwar, R.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arnold, O. W.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Audurier, B.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, pT, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π±, K±, and p + p ¯. For pT< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < pT < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v2, which tests both particle mass dependence and type scaling, follows p + p ¯ v2 at low pT and π±v2 at intermediate pT. The evolution of the shape of vn(pT) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π±, K±, and p + p ¯ for pT < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for pT < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for pT < 1 GeV/c. A comparison to vn coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].

AB - The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯,Λ+Λ¯,KS0, and the ϕ-meson are measured in Pb-Pb collisions at sNN=5.02 TeV. Results obtained with the scalar product method are reported for the rapidity range |y| < 0.5 as a function of transverse momentum, pT, at different collision centrality intervals between 0–70%, including ultra-central (0–1%) collisions for π±, K±, and p + p ¯. For pT< 3 GeV/c, the flow coefficients exhibit a particle mass dependence. At intermediate transverse momenta (3 < pT < 8–10 GeV/c), particles show an approximate grouping according to their type (i.e., mesons and baryons). The ϕ-meson v2, which tests both particle mass dependence and type scaling, follows p + p ¯ v2 at low pT and π±v2 at intermediate pT. The evolution of the shape of vn(pT) as a function of centrality and harmonic number n is studied for the various particle species. Flow coefficients of π±, K±, and p + p ¯ for pT < 3 GeV/c are compared to iEBE-VISHNU and MUSIC hydrodynamical calculations coupled to a hadronic cascade model (UrQMD). The iEBE-VISHNU calculations describe the results fairly well for pT < 2.5 GeV/c, while MUSIC calculations reproduce the measurements for pT < 1 GeV/c. A comparison to vn coefficients measured in Pb-Pb collisions at sNN=2.76 TeV is also provided.[Figure not available: see fulltext.].

KW - Heavy Ion Experiments

UR - https://www.scopus.com/pages/publications/85052957295

U2 - 10.1007/JHEP09(2018)006

DO - 10.1007/JHEP09(2018)006

M3 - Article

AN - SCOPUS:85052957295

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

M1 - 6

ER -

Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV

Abstract

Keywords

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