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

Relativistic Nuclear Physics

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

71 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 - Sep 1 2018

Funding

Worldwide LHC Computing Grid (WLCG) collaboration. The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia; Austrian Academy of Sciences and Nationalstiftung für Forschung, Tech-nologie und Entwicklung, Austria; Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Universidade Federal do Rio Grande do Sul (UFRGS), Financiadora de Estudos e Projetos (Finep) and Fundacão de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil; Ministry of Science & Technology of China (MSTC), National Natural Science Foundation of China (NSFC) and Ministry of Education of China (MOEC), China; Ministry of Science and Education, Croatia; Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic; The Danish Council for Independent Research — Natural Sciences, the Carlsberg Foundation and Danish National Research Foundation (DNRF), Denmark; Helsinki Institute of Physics (HIP), Finland; Commissariat à l’Energie Atomique (CEA) and Institut National de Physique Nucléaire et de Physique des Particules (IN2P3) and Centre National de la Recherche Scientifique (CNRS), France; Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF) and GSI Helmholtzzentrum für Schwerionenforschung GmbH, Germany; General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece; National Research, Development and Innovation Office, Hungary; Department of Atomic Energy Government of India (DAE), Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India (UGC) and Council of Scientific and Industrial Research (CSIR), India; Indonesian Institute of Science, Indonesia; Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi and Istituto Nazionale di Fisica Nucleare (INFN), Italy; Institute for Innovative Science and Technology, Nagasaki Institute of Applied Science (IIST), Japan Society for the Promotion of Science (JSPS) KAKENHI and Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan; Consejo Nacional de Ciencia (CONACYT) y Tecnología, through Fondo de Cooperación Internacional en Ciencia y Tecnología (FONCICYT) and Dirección General de Asuntos del Personal Academico (DGAPA), Mexico; Nederlandse Or-ganisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; The Research Council of Norway, Norway; Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan; Pontificia Universidad Católica del Perú, Peru; Ministry of Science and Higher Education and National Science Centre, Poland; Korea Institute of Science and Technology Information and National Research Foundation of Korea (NRF), Republic of Korea; Ministry of Education and Scientific Research, Institute of Atomic Physics and Romanian National Agency for Science, Technology and Innovation, Romania; Joint Institute for Nuclear Research (JINR), Ministry of Education and Science of the Russian Federation and National Research Centre Kurchatov Institute, Russia; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia; National Research Foundation of South Africa, South Africa; Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Cubaenergía, Cuba and Centro de Investigaciones En- Open Access, Copyright CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3.

Funders	Funder number
Not added	ST/P004598/1, ST/P005438/1, 1796881, ST/L005670/1, ST/P004199/1, ST/P005047/1, ST/N00261X/1, 1657698, ALICE, ST/M00340X/1, ST/L005751/1, ST/M00158X/1, 1843572
Austrian Academy of Sciences and Nationalstiftung für Forschung
Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi and Istituto Nazionale di Fisica Nucleare
General Secretariat for Research and Technology, Ministry of Education, Research and Religions
Helsinki Institute of Physics
Indonesian Institute of Science, Indonesia
Institute of Atomic Physics and Romanian National Agency for Science, Technology and Innovation, Romania
KAW
Ministry of Communications and High Technologies
Ministry of Education, Science, Research and Sport
Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
NRU
NSDTA
National Nuclear Research Center
Nederlandse Or-ganisatie voor Wetenschappelijk Onderzoek
State Committee of Science and World Federation
Turkish Atomic Energy Agency
University Grants Commission, Government of India
Yerevan Physics Institute
National Science Foundation	1713894
U.S. Department of Energy
Nuclear Physics
Türkiye Atom Enerjisi Kurumu
Ministry of Higher Education and Scientific Research
Horizon 2020 Framework Programme	665779
CERN
Office of the Higher Education Commission
Ministarstvo znanosti i obrazovanja
Institute for Innovative Science and Technology, Nagasaki Institute of Applied Science
Science and Technology Facilities Council	ST/M001598/1
National Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
University Grants Commission
Department of Atomic Energy, Government of India
Japan Society for the Promotion of Science	15H03664, 17H01122, 16K17701
Ministry of Education, Culture, Sports, Science and Technology
Danmarks Grundforskningsfond
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Ministry of Education of the People's Republic of China
Bundesministerium für Bildung und Forschung
Carlsbergfondet
Ministry of Science and Technology of the People's Republic of China
Consejo Nacional de Ciencia y Tecnología
Ministry of Education and Science of the Russian Federation
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Korea Institute of Science and Technology Information
National Research Foundation of Korea
Joint Institute for Nuclear Research
Instituto Nazionale di Fisica Nucleare
Knut och Alice Wallenbergs Stiftelse
National Science and Technology Development Agency
Narodowe Centrum Nauki
Suranaree University of Technology
Vetenskapsrådet
Ministerstwo Edukacji i Nauki
National Academy of Sciences of Ukraine
Centre National de la Recherche Scientifique
Financiadora de Estudos e Projetos
Danmarks Frie Forskningsfond
Universidade Federal do Rio Grande do Sul
Norges Forskningsråd
Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Fondo de Cooperación Internacional en Ciencia y Tecnología
GSI Helmholtzzentrum für Schwerionenforschung
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal
Institut National de Physique Nucléaire et de Physique des Particules
National Research Center "Kurchatov Institute"
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Indian Institute of Space Science and Technology

Keywords

Heavy Ion Experiments

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10.1007/JHEP09(2018)006

Cite this

@article{02caefcdf511402e803b9f85e5aa0246,

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 F. Bock and Read, {K. F.} and Schmidt, {N. V.}",

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",

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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 - Bock, F.

AU - Read, K. F.

AU - Schmidt, N. V.

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 - http://www.scopus.com/inward/record.url?scp=85052957295&partnerID=8YFLogxK

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

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Keywords

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