Measurement of prompt D0 and D‾0 meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s                         NN                      =5.02TeV

The CMS collaboration

doi:10.1016/j.physletb.2021.136253

Measurement of prompt D⁰ and D‾⁰ meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s_{_NN}=5.02TeV

The CMS collaboration

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Université libre de Bruxelles
Vrije Universiteit Brussel
Texas A&M University
Texas A&M University at Qatar
Ghent University
Université Paris-Saclay
Université catholique de Louvain
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal do Rio Grande do Sul
Universidade Federal de Mato Grosso do Sul
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
University of Illinois at Chicago
Tsinghua University
University of Virginia
CAS - Institute of High Energy Physics
University of Chinese Academy of Sciences
University of Florida
Massachusetts Institute of Technology
Peking University
University of Kansas
Sun Yat-Sen University
Fudan University
Zhejiang University
Universidad de los Andes Colombia
Universidad de Antioquia
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
The British University in Egypt
Al-Fayoum University
Saha Institute of Nuclear Physics
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
Lappeenranta-Lahti University of Technology
Purdue University
IN2P3-CNRS
Institut Pluridisciplinaire - Hubert Curien (IPHC)
Université de Haute-Alsace
Universite Claude Bernard Lyon 1
Georgian Technical University
Ivane Javakhishvili Tbilisi State University
RWTH Aachen University
Tata Institute of Fundamental Research
Indian Institute of Technology Madras
CERN
Erzincan University
German Electron Synchrotron
University of Hamburg
Isfahan University of Technology
Brandenburg University of Technology
Karlsruhe Institute of Technology
Lomonosov Moscow State University
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
National Technical University of Athens
University of Ioannina
Eötvös Loránd University
University of Debrecen
Assiut University
Wigner Research Centre for Physics
Institute for Nuclear Research
Eszterhazy Karoly University
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 Nebraska-Lincoln
G.H.G. Khalsa College
Indian Institute of Science Education and Research Pune
University of Delhi
Rice University
Shoolini University of Biotechnology and Management Sciences
Northwestern University
University of Hyderabad
Visva-Bharati University
Bhabha Atomic Research Centre
Indian Institute of Technology Bombay
Fermi Natl. Accelerator Laboratory
Institute for Research for Fundamental Sciences
University of Science and Technology of Mazandaran
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
University of Catania
Centro Siciliano di Fisica Nucleare e di Struttura Della Materia
University of Florence
University of Genoa
University of Milan - Bicocca
University of Basilicata
University of Naples Federico II
Università G. Marconi
University of Padua
University of Pavia
University of Perugia
Scuola Normale Superiore di Pisa
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University of Rome La Sapienza
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University of Eastern Piedmont
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Kyungpook National University
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Brown University
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Universidad de Sonora
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
University of Montenegro
The University of Auckland
University of Canterbury
Quaid-I-Azam University
AGH University of Krakow
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Laboratório de Instrumentação e Física Experimental de Partículas
RAS - Saint Petersburg Nuclear Physics Institute
Peter the Great St. Petersburg Polytechnic University
RAS - Institute for Nuclear Research
Imperial College London
Moscow Institute of Physics and Technology
Moscow Engineering Physics Institute
RAS - P.N. Lebedev Physics Institute
Rutherford Appleton Laboratory
University of Southampton
California Institute of Technology
Novosibirsk State University
RAS - Budker Institute of Nuclear Physics
Institute for High Energy Physics
Tomsk Polytechnic University
Tomsk State University
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Universidad de Cantabria
University of Siena
University of Colombo
University of Ruhuna
Eastern University, Sri Lanka
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University of Zurich
ETH Zurich—Institute for Particle Physics and Astrophysics (IPA)
National Central University
CNRS/IN2P3-Univ Mediterranee
National Taiwan University
University of California at San Diego
Chulalongkorn University
Cukurova University
Sirnak University
Near East University
Beykent University
Istanbul Aydin University
Mersin University
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Middle East Technical University
Ozyegin University
Izmir Institute of Technology
Necmettin Erbakan University
Bozok University
Bogazici University
Marmara University
Turkish National Defence University
Kafkas University
Istanbul Bilgi University
Istanbul Technical University
Hacettepe University
Istanbul University
NASU - Institute for Single Crystals
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Durham University
University of Puerto Rico
Monash University
Brunel University London
Baylor University
Catholic University of America
University of Alabama
Boston University
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University of California at Davis
University of California at Los Angeles
University of California at Riverside
University of Wisconsin-Madison
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Carnegie Mellon University
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Cornell University
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University of Iowa
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Nanjing Normal University
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Lawrence Livermore Natl. Lab.
University of Maryland, College Park
University of Minnesota Twin Cities
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Ohio State University
Princeton University
Purdue University Northwest
University of Rochester
Rutgers - The State University of New Jersey, New Brunswick
University of Tennessee, Knoxville
Texas Tech University
Vanderbilt University
Wayne State University

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

34 Citations (Scopus)

Abstract

The strong Coulomb field created in ultrarelativistic heavy ion collisions is expected to produce a rapidity-dependent difference (Δv₂) in the second Fourier coefficient of the azimuthal distribution (elliptic flow, v₂) between D⁰ (u‾c) and D‾⁰ (uc‾) mesons. Motivated by the search for evidence of this field, the CMS detector at the LHC is used to perform the first measurement of Δv₂. The rapidity-averaged value is found to be 〈Δv₂〉=0.001±0.001(stat)±0.003(syst) in PbPb collisions at s_{_NN}=5.02TeV. In addition, the influence of the collision geometry is explored by measuring the D⁰ and D‾⁰mesons v₂ and triangular flow coefficient (v₃) as functions of rapidity, transverse momentum (p_T), and event centrality (a measure of the overlap of the two Pb nuclei). A clear centrality dependence of prompt D⁰ meson v₂ values is observed, while the v₃ is largely independent of centrality. These trends are consistent with expectations of flow driven by the initial-state geometry.

Original language	English
Article number	136253
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	816
DOIs	https://doi.org/10.1016/j.physletb.2021.136253
Publication status	Published - 10 May 2021
Externally published	Yes

Keywords

CMS
Charm
Electromagnetic fields
Heavy-flavor

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10.1016/j.physletb.2021.136253

Cite this

@article{0ce368d17a524d299d600e456325394f,

title = "Measurement of prompt D0 and D‾0 meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s NN =5.02TeV",

abstract = "The strong Coulomb field created in ultrarelativistic heavy ion collisions is expected to produce a rapidity-dependent difference (Δv2) in the second Fourier coefficient of the azimuthal distribution (elliptic flow, v2) between D0 (u‾c) and D‾0 (uc‾) mesons. Motivated by the search for evidence of this field, the CMS detector at the LHC is used to perform the first measurement of Δv2. The rapidity-averaged value is found to be 〈Δv2〉=0.001±0.001(stat)±0.003(syst) in PbPb collisions at s NN =5.02TeV. In addition, the influence of the collision geometry is explored by measuring the D0 and D‾0mesons v2 and triangular flow coefficient (v3) as functions of rapidity, transverse momentum (pT), and event centrality (a measure of the overlap of the two Pb nuclei). A clear centrality dependence of prompt D0 meson v2 values is observed, while the v3 is largely independent of centrality. These trends are consistent with expectations of flow driven by the initial-state geometry.",

keywords = "CMS, Charm, Electromagnetic fields, Heavy-flavor",

author = "\{The CMS collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and T. Bergauer and M. Dragicevic and J. Er{\"o} and \{Escalante Del Valle\}, A. and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and L. Lechner and D. Liko and T. Madlener and I. Mikulec and Pitters, \{F. M.\} and N. Rad and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and M. Zarucki and V. Chekhovsky and A. Litomin and V. Makarenko and \{Suarez Gonzalez\}, J. and Darwish, \{M. R.\} and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and T. Kello and A. Lelek and M. Pieters and \{Rejeb Sfar\}, H. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Putte\}, S. and \{Van Remortel\}, N. and F. Blekman and Bols, \{E. S.\} and Chhibra, \{S. S.\} and J. D'Hondt and \{De Clercq\}, J. and D. Lontkovskyi and S. Lowette and I. Marchesini and S. Moortgat and O. Bouhali",

note = "Publisher Copyright: {\textcopyright} 2021 The Author",

year = "2021",

month = may,

day = "10",

doi = "10.1016/j.physletb.2021.136253",

language = "English",

volume = "816",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Measurement of prompt D⁰ and D‾⁰ meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s_{_NN}=5.02TeV. / The CMS collaboration.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 816, 136253, 10.05.2021.

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

TY - JOUR

T1 - Measurement of prompt D0 and D‾0 meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s NN =5.02TeV

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Frühwirth, R.

AU - Jeitler, M.

AU - Krammer, N.

AU - Lechner, L.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Pitters, F. M.

AU - Rad, N.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Litomin, A.

AU - Makarenko, V.

AU - Suarez Gonzalez, J.

AU - Darwish, M. R.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Kello, T.

AU - Lelek, A.

AU - Pieters, M.

AU - Rejeb Sfar, H.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - Chhibra, S. S.

AU - D'Hondt, J.

AU - De Clercq, J.

AU - Lontkovskyi, D.

AU - Lowette, S.

AU - Marchesini, I.

AU - Moortgat, S.

AU - Bouhali, O.

PY - 2021/5/10

Y1 - 2021/5/10

N2 - The strong Coulomb field created in ultrarelativistic heavy ion collisions is expected to produce a rapidity-dependent difference (Δv2) in the second Fourier coefficient of the azimuthal distribution (elliptic flow, v2) between D0 (u‾c) and D‾0 (uc‾) mesons. Motivated by the search for evidence of this field, the CMS detector at the LHC is used to perform the first measurement of Δv2. The rapidity-averaged value is found to be 〈Δv2〉=0.001±0.001(stat)±0.003(syst) in PbPb collisions at s NN =5.02TeV. In addition, the influence of the collision geometry is explored by measuring the D0 and D‾0mesons v2 and triangular flow coefficient (v3) as functions of rapidity, transverse momentum (pT), and event centrality (a measure of the overlap of the two Pb nuclei). A clear centrality dependence of prompt D0 meson v2 values is observed, while the v3 is largely independent of centrality. These trends are consistent with expectations of flow driven by the initial-state geometry.

AB - The strong Coulomb field created in ultrarelativistic heavy ion collisions is expected to produce a rapidity-dependent difference (Δv2) in the second Fourier coefficient of the azimuthal distribution (elliptic flow, v2) between D0 (u‾c) and D‾0 (uc‾) mesons. Motivated by the search for evidence of this field, the CMS detector at the LHC is used to perform the first measurement of Δv2. The rapidity-averaged value is found to be 〈Δv2〉=0.001±0.001(stat)±0.003(syst) in PbPb collisions at s NN =5.02TeV. In addition, the influence of the collision geometry is explored by measuring the D0 and D‾0mesons v2 and triangular flow coefficient (v3) as functions of rapidity, transverse momentum (pT), and event centrality (a measure of the overlap of the two Pb nuclei). A clear centrality dependence of prompt D0 meson v2 values is observed, while the v3 is largely independent of centrality. These trends are consistent with expectations of flow driven by the initial-state geometry.

KW - CMS

KW - Charm

KW - Electromagnetic fields

KW - Heavy-flavor

UR - https://www.scopus.com/pages/publications/85106117663

U2 - 10.1016/j.physletb.2021.136253

DO - 10.1016/j.physletb.2021.136253

M3 - Article

AN - SCOPUS:85106117663

SN - 0370-2693

VL - 816

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

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

M1 - 136253

ER -

Measurement of prompt D⁰ and D‾⁰ meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s_{_NN}=5.02TeV

Abstract

Keywords

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