Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at √sNN=8.16 TeV

doi:10.1016/j.physletb.2019.02.018

Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at √s_NN=8.16 TeV

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
Universidade do Estado do Rio de Janeiro
Université libre de Bruxelles
Ghent University
Université Paris-Saclay
Université catholique de Louvain
Centro Brasileiro de Pesquisas Físicas
Universidade Estadual de Campinas
Universidade Federal do Rio Grande do Sul
Universidade Estadual Paulista Júlio de Mesquita Filho
Universidade Federal do ABC
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
Beihang University
CAS - Institute of High Energy Physics
University of Chinese Academy of Sciences
Peking University
Tsinghua University
Universidad de los Andes Colombia
University of Split
Ruder Boskovic Institute
Alikhanov Institute for Theoretical and Experimental Physics
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Escuela Politécnica Nacional
Universidad San Francisco de Quito
Academy of Scientific Research and Technology
Al-Fayoum University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Lappeenranta-Lahti University of Technology
King Abdulaziz University
Université de Haute-Alsace
Universite Claude Bernard Lyon 1
Lomonosov Moscow State University
Georgian Technical University
Ivane Javakhishvili Tbilisi State University
RWTH Aachen University
CERN
German Electron Synchrotron
University of Hamburg
Brandenburg University of Technology
Karlsruhe Institute of Technology
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
National Technical 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
Institute of Physics Bhubaneswar
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Shoolini University of Biotechnology and Management Sciences
Indian Institute of Technology Madras
Homi Bhabha National Institute
Tata Institute of Fundamental Research
Visva-Bharati University
Indian Institute of Science Education and Research Pune
Institute for Research for Fundamental Sciences
Isfahan University of Technology
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
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Kyungpook National University
Chonnam National University
Hanyang University
Kyung Hee University
Korea University
Sejong University
Seoul National University
University of Seoul
Sungkyunkwan University
Vilnius University
University of Malaya
International Islamic University Malaysia
Malaysian Nuclear Agency
Universidad de Sonora
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
RAS - Institute for Nuclear Research
RAS - Saint Petersburg Nuclear Physics Institute
Peter the Great St. Petersburg Polytechnic University
University of Florida
Moscow Institute of Physics and Technology
Moscow Engineering Physics Institute
RAS - P.N. Lebedev Physics Institute
California Institute of Technology
Novosibirsk State University
RAS - Budker Institute of Nuclear Physics
Institute for High Energy Physics
Tomsk Polytechnic University
University of Belgrade
CIEMAT
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Hacettepe University
NASU - Institute for Single Crystals
NASU - Kharkov Institute of Physics and Technology
University of Bristol
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Imperial College London
Monash University
Brunel University London
Baylor University
Catholic University of America
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Brown University
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Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

A measurement of the elliptic flow (v₂) of prompt J/ψ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy s_NN=8.16TeV. Prompt J/ψ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (y_cm), corresponding to either −2.86<y_cm<−1.86 or 0.94<y_cm<1.94. The average v₂ result from the two rapidity ranges is reported over the transverse momentum (p_T) range from 0.2 to 10 GeV. Positive v₂ values are observed for the prompt J/ψ meson, as extracted from long-range two-particle correlations with charged hadrons, for 2<p_T<8 GeV. The prompt J/ψ results are compared with previous CMS measurements of elliptic flow for open charm mesons (D⁰) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.

Original language	English
Pages (from-to)	172-194
Number of pages	23
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	791
DOIs	https://doi.org/10.1016/j.physletb.2019.02.018
State	Published - 10 Apr 2019
Externally published	Yes

Keywords

CMS
Correlation
Flow
Heavy flavor
Heavy-ion physics
pPb

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10.1016/j.physletb.2019.02.018

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@article{a3cf34f5beb44c20930548941fec8f01,

title = "Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at √sNN=8.16 TeV",

abstract = "A measurement of the elliptic flow (v2) of prompt J/ψ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy sNN=8.16TeV. Prompt J/ψ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (ycm), corresponding to either −2.86cm<−1.86 or 0.94cm<1.94. The average v2 result from the two rapidity ranges is reported over the transverse momentum (pT) range from 0.2 to 10 GeV. Positive v2 values are observed for the prompt J/ψ meson, as extracted from long-range two-particle correlations with charged hadrons, for 2T<8 GeV. The prompt J/ψ results are compared with previous CMS measurements of elliptic flow for open charm mesons (D0) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.",

keywords = "CMS, Correlation, Flow, Heavy flavor, Heavy-ion physics, pPb",

author = "Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and M. Dragicevic and J. Er{\"o} and \{Escalante Del Valle\}, A. and M. Flechl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and J. Hrubec and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, \{C. E.\} and M. Zarucki and V. Chekhovsky and V. Mossolov and \{Suarez Gonzalez\}, J. and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and J. Lauwers and M. Pieters and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Abu Zeid\}, S. and F. Blekman and J. D'Hondt and \{De Bruyn\}, I. and \{De Clercq\}, J. and K. Deroover and G. Flouris and \{Sanchez Rosas\}, \{L. J.\}",

note = "Publisher Copyright: {\textcopyright} 2019 The Author(s)",

year = "2019",

month = apr,

day = "10",

doi = "10.1016/j.physletb.2019.02.018",

language = "English",

volume = "791",

pages = "172--194",

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

issn = "0370-2693",

}

TY - JOUR

T1 - Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at √sNN=8.16 TeV

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - Pieters, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Abu Zeid, S.

AU - Blekman, F.

AU - D'Hondt, J.

AU - De Bruyn, I.

AU - De Clercq, J.

AU - Deroover, K.

AU - Flouris, G.

AU - Sanchez Rosas, L. J.

PY - 2019/4/10

Y1 - 2019/4/10

N2 - A measurement of the elliptic flow (v2) of prompt J/ψ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy sNN=8.16TeV. Prompt J/ψ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (ycm), corresponding to either −2.86cm<−1.86 or 0.94cm<1.94. The average v2 result from the two rapidity ranges is reported over the transverse momentum (pT) range from 0.2 to 10 GeV. Positive v2 values are observed for the prompt J/ψ meson, as extracted from long-range two-particle correlations with charged hadrons, for 2T<8 GeV. The prompt J/ψ results are compared with previous CMS measurements of elliptic flow for open charm mesons (D0) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.

AB - A measurement of the elliptic flow (v2) of prompt J/ψ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy sNN=8.16TeV. Prompt J/ψ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (ycm), corresponding to either −2.86cm<−1.86 or 0.94cm<1.94. The average v2 result from the two rapidity ranges is reported over the transverse momentum (pT) range from 0.2 to 10 GeV. Positive v2 values are observed for the prompt J/ψ meson, as extracted from long-range two-particle correlations with charged hadrons, for 2T<8 GeV. The prompt J/ψ results are compared with previous CMS measurements of elliptic flow for open charm mesons (D0) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.

KW - CMS

KW - Correlation

KW - Flow

KW - Heavy flavor

KW - Heavy-ion physics

KW - pPb

UR - https://www.scopus.com/pages/publications/85062430305

U2 - 10.1016/j.physletb.2019.02.018

DO - 10.1016/j.physletb.2019.02.018

M3 - Article

AN - SCOPUS:85062430305

SN - 0370-2693

VL - 791

SP - 172

EP - 194

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 -

Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at √s_NN=8.16 TeV

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Keywords

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