Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at √sNN = 5.02 TeV

The ALICE collaboration

doi:10.1007/JHEP12(2022)126

Measurement of beauty production via non-prompt D⁰ mesons in Pb-Pb collisions at √sNN = 5.02 TeV

The ALICE collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

European Organization for Nuclear Research
VECC Kolkata
Nuclear Physics Institute of the Cas
Johann Wolfgang Goethe University
Lund University
INFN Sez. di Torino
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Aligarh Muslim University
Korea Institute of Science and Technology Information
P. J. Safarik University
Indonesian Institute of Sciences
National Research Centre "Kurchatov Institute"
GSI Helmholtz Center
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
Sezione INFN di Cagliari
University of St. Petersburg
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Münster
Heidelberg University
Dipartimento di Fisica 'G. Galilei' and INFN
Lawrence Berkeley National Laboratory
l'institut du thorax
University of Oslo
Yale University
Institut de Physique Nucléaire
Laboratori Nazionali Del Sud
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Université Paris-Saclay Centre d’ Études de Saclay (CEA)
Univ of Mining and Metallurgy
Bose Institute
Technical University of Munich
University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
LAIC, Université d'Auvergne
University of Liverpool
Joint Inst. for Nuclear Research
The Indian Institute of Technology Bombay
Pontifical Catholic University of Peru San Miguel
Niels Bohr Institutet
Institut Pluridisciplinaire Hubert Curien
National Research Nuclear University MEPhI
Instituto de Ciencias Nucleares de la UNAM
Petersburg Nuclear Phys. Inst.
Institute of Space Sciences
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Texas at Austin
Moscow Institute of Physics and Technology
University of Pavia
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
University of São Paulo
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
Politecnico di Bari
INFN- Sezione di Trieste
Russian Federal Nuclear Center (VNIIEF)
Stefan Meyer Institut für Subatomare Physik (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
University of Kansas
Universidad Autonoma de Sinaloa
Benemerita Universidad Autonoma de Puebla
University Politehnica of Bucharest
University of Lyon
Homi Bhabha National Institute
University of Campinas
Science Park 105
Tsukuba University
Energy and Sustainable Economic Development (ENEA)
University of Cape Town
University of Birmingham
Politecnico di Torino
University of Grenoble Alpes
University of Eastern Piedmont
UFABC
Sezione INFN di Roma La Sapienza
Frankfurt Institute for Advanced Studies
Warsaw Institute of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Institute for Nuclear Research of the Russian Academy of Sciences
Panjab University
Technical University of Košice
Comenius University
University of Zagreb
Institute for High Energy Physics (IHEP)
Chicago State University
National Nuclear Research Center
UFRGS
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
University of Split
the University of Utrecht
A.I. Alikhanyan National Science Laboratory (YerPhi)
University of Tokyo
University of Bonn
Western Norway University of Applied Sciences
CINVESTAV
Yonsei University
Creighton University
University of Jyväskylä
Ohio State University
Suranaree University of Technology
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Pusan National University
Chonbuk National University
Sejong University
California Polytechnic State University, San Luis Obispo
National Center for Nuclear Research (NCBJ)
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
Moscow State University
Multimedia and Distributed Systems Laboratory
University of Foggia
University of Helsinki and Helsinki Institute of Physics
Chungbuk National University
Hiroshima University
China University of Geosciences
Budker Institute of Nuclear Physics (SB RAS)
University of Rajasthan
Wrocław University
University of Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

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21 Scopus citations

Abstract

The production of non-prompt D⁰ mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (R_AA), measured for the first time down to p_T = 1 GeV/c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for p_T> 5 GeV/c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D⁰-meson R_AA is larger than unity for p_T> 4 GeV/c in the 0–10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass. [Figure not available: see fulltext.]

Original language	English
Article number	126
Journal	Journal of High Energy Physics
Volume	2022
Issue number	12
DOIs	https://doi.org/10.1007/JHEP12(2022)126
State	Published - Dec 2022

Keywords

Heavy Ion Experiments
Heavy Quark Production
Quark Gluon Plasma

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10.1007/JHEP12(2022)126

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@article{d271f49d01564175993c330b360823fe,

title = "Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at √sNN = 5.02 TeV",

abstract = "The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0–10\% and 30–50\% centrality classes, indicates a significant suppression, up to a factor of about three, for pT> 5 GeV/c in the 0–10\% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D0-meson RAA is larger than unity for pT> 4 GeV/c in the 0–10\% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass. [Figure not available: see fulltext.]",

keywords = "Heavy Ion Experiments, Heavy Quark Production, Quark Gluon Plasma",

author = "\{The ALICE collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and J. Adolfsson and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and Z. Akbar and A. Akindinov and M. Al-Turany and Alam, \{S. N.\} and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and A. Andronic and V. Anguelov and F. Antinori and P. Antonioli and C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and S. Aziz and Azmi, \{M. D.\} and A. Badal{\`a} and Baek, \{Y. W.\} and X. Bai and L. Fabbietti",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = dec,

doi = "10.1007/JHEP12(2022)126",

language = "English",

volume = "2022",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "12",

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TY - JOUR

T1 - Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at √sNN = 5.02 TeV

AU - The ALICE collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Baek, Y. W.

AU - Bai, X.

AU - Fabbietti, L.

PY - 2022/12

Y1 - 2022/12

N2 - The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT> 5 GeV/c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D0-meson RAA is larger than unity for pT> 4 GeV/c in the 0–10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass. [Figure not available: see fulltext.]

AB - The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT> 5 GeV/c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D0-meson RAA is larger than unity for pT> 4 GeV/c in the 0–10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass. [Figure not available: see fulltext.]

KW - Heavy Ion Experiments

KW - Heavy Quark Production

KW - Quark Gluon Plasma

UR - https://www.scopus.com/pages/publications/85145731129

U2 - 10.1007/JHEP12(2022)126

DO - 10.1007/JHEP12(2022)126

M3 - Article

AN - SCOPUS:85145731129

SN - 1126-6708

VL - 2022

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 126

ER -

Measurement of beauty production via non-prompt D⁰ mesons in Pb-Pb collisions at √sNN = 5.02 TeV

Abstract

Keywords

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