Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV

The CMS collaboration

doi:10.1016/j.physletb.2017.11.041

Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at s_NN=5.02 TeV

The CMS collaboration

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
CAS - Institute of High Energy Physics
Université libre de Bruxelles
Peking University
Ghent University
Université catholique de Louvain
Université de Strasbourg
Universite de Mons
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal de Pelotas
Universidade Estadual Paulista Júlio de Mesquita Filho
Universidade Federal do ABC
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
Beihang University
German Electron Synchrotron
Universidad de los Andes Colombia
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Universidad San Francisco de Quito
Academy of Scientific Research and Technology
Cairo University
Al-Fayoum University
The British University in Egypt
Ain Shams University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Lappeenranta-Lahti University of Technology
Université Paris-Saclay
CNRS-Ecole Polytechnique-UPMC
Université de Haute-Alsace
CNRS/IN2P3
Universite Claude Bernard Lyon 1
Lomonosov Moscow State University
Georgian Technical University
Ivane Javakhishvili Tbilisi State University
Ilia State University
RWTH Aachen University
CERN
University of Hamburg
Brandenburg University of Technology
Karlsruhe Institute of Technology
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
University of Ioannina
Eötvös Loránd University
Wigner Research Centre for Physics
Institute for Nuclear Research
University of Debrecen
Indian Institute of Science Bangalore
National Institute of Science Education and Research
Indian Institute of Technology Bhubaneswar
Visva-Bharati University
Indian Institute of Science Education and Research Bhopal
Institute of Physics Bhubaneswar
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Indian Institute of Technology Madras
Homi Bhabha National Institute
Tata Institute of Fundamental Research
University of Ruhuna
Indian Institute of Science Education and Research Pune
Institute for Research for Fundamental Sciences
Isfahan University of Technology
Yazd University
Islamic Azad University
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
University of Catania
University of Florence
University of Siena
University of Genoa
University of Milan - Bicocca
University of Basilicata
Università G. Marconi
University of Naples Federico II
University of Padua
University of Trento
Laboratori Nazionali di Legnaro
University of Pavia
University of Perugia
Scuola Normale Superiore di Pisa
University of Pisa
Purdue University
University of Rome La Sapienza
University of Turin
University of Eastern Piedmont
University of Trieste
Kyungpook National University
Jeonbuk National University
Chonnam National University
Hanyang University
Korea University
Seoul National University
University of Seoul
Sungkyunkwan University
Vilnius University
University of Malaya
International Islamic University Malaysia
Malaysian Nuclear Agency
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Consejo Nacional de Ciencia y Tecnologia Mexico
Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
The University of Auckland
University of Canterbury
Quaid-I-Azam University
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Laboratório de Instrumentação e Física Experimental de Partículas
Institute for Nuclear Research of the Russian Academy of Sciences
Moscow Engineering Physics Institute
Petersburg Nuclear Physics Institute (PNPI)
Peter the Great St. Petersburg Polytechnic University
University of Florida
Alikhanov Institute for Theoretical and Experimental Physics
Moscow Institute of Physics and Technology
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Novosibirsk State University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Universidad de Cantabria
Riga Technical University
Paul Scherrer Institute
ETH Zurich - Institute for Particle Physics and Astrophysics (IPA)
University of Zurich
University of Bern
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Gaziosmanpasa University
Adiyaman University
Istanbul Aydin University
Mersin University
Cag University
Piri Reis University
Middle East Technical University
Ozyegin University
Izmir Institute of Technology
Bogazici University
Marmara University
Kafkas University
Istanbul Bilgi University
Yildiz Technical University
Istanbul Technical University
Hacettepe University
NASU - Institute for Single Crystals
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
University of Southampton
Imperial College London
Instituto de Astrofísica de Canarias
Brunel University London
Baylor University
Catholic University of America
University of Alabama
Boston University
Brown University
University of California at Davis
University of California at Los Angeles
University of California at Riverside
University of California at San Diego
Utah Valley University
University of California at Santa Barbara
California Institute of Technology
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fairfield University
Fermi National Accelerator Laboratory
Florida International University
Florida State University
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University of Illinois at Chicago
University of Iowa
Argonne National Laboratory
Erzincan University
Mimar Sinan Guzel Sanatlar University
Johns Hopkins University
University of Kansas
Kansas State University
Lawrence Livermore National Laboratory
University of Maryland, College Park
Massachusetts Institute of Technology
University of Minnesota Twin Cities
University of Mississippi
University of Nebraska-Lincoln
SUNY Buffalo
Northeastern University
Northwestern University
University of Notre Dame
Ohio State University
Princeton University
University of Puerto Rico
Purdue University Northwest
Rice University
University of Rochester
Rutgers - The State University of New Jersey, New Brunswick
University of Tennessee
Texas A&M University
Texas A&M University at Qatar
Texas Tech University
Vanderbilt University
University of Virginia
Wayne State University
University of Wisconsin-Madison

科研成果: 期刊稿件 › 文章 › 同行评审

91 引用（Scopus）

摘要

The Fourier coefficients v₂ and v₃ characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at s_NN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1<p_T<100 GeV/c. The analysis focuses on the p_T>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v₂ coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to p_T∼60–80 GeV/c, in all examined centrality classes. The v₃ coefficient, only measured with the scalar product method, tends to zero for p_T≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.

源语言	英语
页（从-至）	195-216
页数	22
期刊	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
卷	776
DOI	https://doi.org/10.1016/j.physletb.2017.11.041
出版状态	已出版 - 10 1月 2018
已对外发布	是

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10.1016/j.physletb.2017.11.041

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@article{9c1baca5d6c642ebae33698fd523e933,

title = "Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV",

abstract = "The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1T<100 GeV/c. The analysis focuses on the pT>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60\% most central events. The v2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to pT∼60–80 GeV/c, in all examined centrality classes. The v3 coefficient, only measured with the scalar product method, tends to zero for pT≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.",

keywords = "CMS, Flow, High-p, Jet quenching, Parton energy loss, QGP",

author = "\{The CMS collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and J. Strauss and W. Waltenberger and Wulz, \{C. E.\} and O. Dvornikov and V. Makarenko and V. Mossolov and \{Suarez Gonzalez\}, J. and V. Zykunov and N. Shumeiko and S. Alderweireldt and \{De Wolf\}, \{E. A.\} and X. Janssen and J. Lauwers and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Van Spilbeeck\}, A. and \{Abu Zeid\}, S. and F. Blekman and J. D'Hondt and N. Daci and T. Cheng",

note = "Publisher Copyright: {\textcopyright} 2017 The Author",

year = "2018",

month = jan,

day = "10",

doi = "10.1016/j.physletb.2017.11.041",

language = "英语",

volume = "776",

pages = "195--216",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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T1 - Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rad, N.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Strauss, J.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Dvornikov, O.

AU - Makarenko, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - Zykunov, V.

AU - Shumeiko, N.

AU - Alderweireldt, S.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Lauwers, J.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Abu Zeid, S.

AU - Blekman, F.

AU - D'Hondt, J.

AU - Daci, N.

AU - Cheng, T.

PY - 2018/1/10

Y1 - 2018/1/10

N2 - The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1T<100 GeV/c. The analysis focuses on the pT>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to pT∼60–80 GeV/c, in all examined centrality classes. The v3 coefficient, only measured with the scalar product method, tends to zero for pT≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.

AB - The Fourier coefficients v2 and v3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at sNN=5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1T<100 GeV/c. The analysis focuses on the pT>10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to pT∼60–80 GeV/c, in all examined centrality classes. The v3 coefficient, only measured with the scalar product method, tends to zero for pT≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.

KW - CMS

KW - Flow

KW - High-p

KW - Jet quenching

KW - Parton energy loss

KW - QGP

UR - https://www.scopus.com/pages/publications/85037663555

U2 - 10.1016/j.physletb.2017.11.041

DO - 10.1016/j.physletb.2017.11.041

M3 - 文章

AN - SCOPUS:85037663555

SN - 0370-2693

VL - 776

SP - 195

EP - 216

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at sNN=5.02 TeV

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Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at s_NN=5.02 TeV