Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies

The CMS collaboration

doi:10.1016/j.physletb.2020.136036

Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies

The CMS collaboration

Yerevan Physics Institute
Institut für Hochenergiephysik
Vienna University of Technology
Institute for Nuclear Problems of Belarusian State University
University of Antwerp
Université Libre de Bruxelles
c/o DESY
INFN Sezione di Torino
University of Turin
Vrjie Universiteit Brussel
Ghent University
Université Paris-Saclay
University of Louvain
Centro Brasileiro de Pesquisas Fisicas
Rua São Francisco de Xavier
University of Campinas (UNICAMP)
Universidade Federal do Rio Grande do Sul
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Universidade Federal de Pelotas
São Paulo State University
Federal University of ABC (UFABC)
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Sofia
Beihang University
University of Illinois at Chicago
Tsinghua University
University of Virginia
Institute of High Energy Physics, Chinese Academy of Sciences
University of Chinese Academy of Sciences
University of Florida
Massachusetts Institute of Technology
State Key Laboratory of Nuclear Physics and Technology
University of Kansas
Sun Yat-Sen University
Fudan University
Zhejiang University
Universidad de Los Andes, Colombia
Universidad de Antioquia
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Faculty of Science, University of Split
Ruđer Bošković Institute
Institute for Theoretical and Experimental Physics
University of Cyprus
Charles University
Joint Institute for Nuclear Research, Dubna
Escuela Politecnica Nacional
Universidad San Francisco de Quito
Egyptian Network of High Energy Physics
British University in Egypt
Fayoum University
Saha Institute of Nuclear Physics
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
LUT University
Purdue University
Ip Paris
Université de Strasbourg
Université de Haute Alsace
IGFL, Université de Lyon, Université Lyon 1
Georgian Technical University
Tbilisi State University
RWTH Aachen University
Tata Institute of Fundamental Research, Mumbai
Indian Institute of Technology Madras
European Organization for Nuclear Research
Erzincan University
Universität Hamburg
Isfahan University of Technology
Joint Faculty of the Brandenburg University of Technology Cottbus Senftenberg
Institute of Meteorology and Climate Research
Moscow State University
NCSR Demokritos
University of Athens
National Technical University of Athens
University of Ioannina
Eötvös Loránd University
University of Debrecen
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
Eszterhazy Karoly University
Indian Institute of Science
National Institute of Science Education and Research
IIT Bhubaneswar
Institute of Physics Bhubaneswar
Panjab University
University of Nebraska-Lincoln
G.H.G. Khalsa College
Indian Institute of Science Education and Research (IISER)
University of Delhi
Rice University
Shoolini University
Northwestern University
University of Hyderabad
University of Visva-Bharati
Bhabha Atomic Research Centre
Indian Institute of Technology Bombay
Fermi National Accelerator Laboratory
Institute for Research in Fundamental Sciences (IPM)
University of Science and Technology of Mazandaran, Behshahr
University College Dublin
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Politecnico di Bari
INFN Sezione di Bologna
University of Bologna
ENEA Climate Modeling and Impacts
INFN Sezione di Catania
Università degli Studi di Catania
CSFNSM
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Florence
LNF-INFN
Sezione di Genova
University of Genoa
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
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Università degli Studi della Basilicata
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Università G. Marconi
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Laboratory of Molecular Pathology
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Kyungpook National University
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Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
Chonnam National University
Texas A&M University
Hanyang University
Korea University
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Kyung Hee University
Sejong University
University of Seoul
Yonsei University
Riga Technical University
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Universidad de Sonora
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Benemerita Universidad Autonoma de Puebla
Universidad Autónoma de San Luis Potosi
University of Montenegro
University of Auckland
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Quaid-i-Azam University
Agh University of Science and Technology Faculty of Computer Science
National Research Nuclear University MEPhI
University of Warsaw
Warsaw University of Technology
Lisboa
Petersburg Nuclear Physics Institute (PNPI)
St. Petersburg State Polytechnical University
Institute for Nuclear Research of the Russian Academy of Sciences
Imperial College London
Moscow Institute of Physics and Technology
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
CCLRC Rutherford Appleton Laboratory
University of Southampton
California Institute of Technology
Novosibirsk State University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Kurchatov Institute
National Research Tomsk Polytechnic University
Tomsk State University
University of Belgrade
University of Belgrade
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
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ETH Zurich
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National Central University
National Taiwan University
University of California, San Diego
Chulalongkorn University
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Şırnak University
Near East University
Beykent University
Istanbul Aydin University
Mersin University
Piri Reis University
Adiyaman University
Middle East Technical University (METU)
Ozyegin University
Izmir Institute of Technology
Necmettin Erbakan University
Bozok Universitesi Rektörlügü
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Marmara University
Milli Savunma University
Kafkas University
Istanbul Bilgi University
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Academy of Science of Ukraine
Kharkov Institute of Physics and Technology
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IPPP Durham University
University of Puerto Rico
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Cornell University
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Purdue University Northwest
University of Rochester
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Abstract

Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D0 mesons produced in pp and pPb collisions are presented. Nonprompt D0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v2 signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2-6 GeV. Compared at similar event multiplicities, the prompt D0 meson v2 values in pp and pPb collisions are similar in magnitude. The v2 values for open beauty hadrons are extracted for the first time via nonprompt D0 mesons in pPb collisions. For pT in the range of 2-5 GeV, the results suggest that v2 for nonprompt D0 mesons is smaller than that for prompt D0 mesons. These new measurements indicate a positive charm hadron v2 in pp collisions and suggest a mass dependence in v2 between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.

Original language	English
Article number	136036
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	813
DOIs	https://doi.org/10.1016/j.physletb.2020.136036
Publication status	Published - 10 Feb 2021

Keywords

CMS
Collectivity
Elliptic flow
Heavy flavor
Ridge
Small systems

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10.1016/j.physletb.2020.136036

Cite this

@article{61f71bef916041c7a6ce48d4a6971fcc,

title = "Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies",

abstract = "Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D0 mesons produced in pp and pPb collisions are presented. Nonprompt D0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v2 signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2-6 GeV. Compared at similar event multiplicities, the prompt D0 meson v2 values in pp and pPb collisions are similar in magnitude. The v2 values for open beauty hadrons are extracted for the first time via nonprompt D0 mesons in pPb collisions. For pT in the range of 2-5 GeV, the results suggest that v2 for nonprompt D0 mesons is smaller than that for prompt D0 mesons. These new measurements indicate a positive charm hadron v2 in pp collisions and suggest a mass dependence in v2 between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.",

keywords = "CMS, Collectivity, Elliptic flow, Heavy flavor, Ridge, Small systems",

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 F. Beaudette and O. Davignon and \{Granier de Cassagnac\}, R. and M. Nguyen and C. Ochando and P. Paganini and R. Salerno and A. Zabi and A. Zghiche and \{De Wit\}, A. and A. Cappati",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s).",

year = "2021",

month = feb,

day = "10",

doi = "10.1016/j.physletb.2020.136036",

language = "English",

volume = "813",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies

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 - Beaudette, F.

AU - Davignon, O.

AU - Granier de Cassagnac, R.

AU - Nguyen, M.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Zabi, A.

AU - Zghiche, A.

AU - De Wit, A.

AU - Cappati, A.

PY - 2021/2/10

Y1 - 2021/2/10

N2 - Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D0 mesons produced in pp and pPb collisions are presented. Nonprompt D0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v2 signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2-6 GeV. Compared at similar event multiplicities, the prompt D0 meson v2 values in pp and pPb collisions are similar in magnitude. The v2 values for open beauty hadrons are extracted for the first time via nonprompt D0 mesons in pPb collisions. For pT in the range of 2-5 GeV, the results suggest that v2 for nonprompt D0 mesons is smaller than that for prompt D0 mesons. These new measurements indicate a positive charm hadron v2 in pp collisions and suggest a mass dependence in v2 between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.

AB - Measurements of the second Fourier harmonic coefficient (v2) of the azimuthal distributions of prompt and nonprompt D0 mesons produced in pp and pPb collisions are presented. Nonprompt D0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v2 signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2-6 GeV. Compared at similar event multiplicities, the prompt D0 meson v2 values in pp and pPb collisions are similar in magnitude. The v2 values for open beauty hadrons are extracted for the first time via nonprompt D0 mesons in pPb collisions. For pT in the range of 2-5 GeV, the results suggest that v2 for nonprompt D0 mesons is smaller than that for prompt D0 mesons. These new measurements indicate a positive charm hadron v2 in pp collisions and suggest a mass dependence in v2 between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.

KW - CMS

KW - Collectivity

KW - Elliptic flow

KW - Heavy flavor

KW - Ridge

KW - Small systems

U2 - 10.1016/j.physletb.2020.136036

DO - 10.1016/j.physletb.2020.136036

M3 - Article

AN - SCOPUS:85100575799

SN - 0370-2693

VL - 813

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 - 136036

ER -

Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies

Abstract

Keywords

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