Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at sNN=5.02 and 2.76 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2021.136558

Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at s_NN=5.02 and 2.76 TeV

ALICE Collaboration

Physics Education

Variable Energy Cyclotron Centre India
Czech Academy of Sciences
Goethe University Frankfurt
Lund University
CERN
National Institute for Nuclear Physics
Enrico Fermi Center
Aligarh Muslim University
Korea Institute of Science and Technology Information
Indonesian Institute of Sciences
Russian Research Centre Kurchatov Institute
GSI Helmholtz Centre for Heavy Ion Research
Universidade Estadual de Campinas
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
St. Petersburg State University
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Institute for Subatomic Physics
University of Münster
Heidelberg University
Ruder Boskovic Institute
Lawrence Berkeley National Laboratory
Nantes Université
University of Oslo
Yale University
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

Research output: Contribution to journal › Journal article › peer-review

14 Scopus citations

Abstract

Measurements of the production of muons from heavy-flavour hadron decays in Pb–Pb collisions at s_NN=5.02 and 2.76 TeV using the ALICE detector at the LHC are reported. The nuclear modification factor R_AA at s_NN=5.02 TeV is measured at forward rapidity (2.5<y<4) as a function of transverse momentum p_T in central, semi-central, and peripheral collisions over a wide p_T interval, 3<p_T<20 GeV/c, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high p_T (p_T>7 GeV/c). The R_AA shows an increase of the suppression of the yields of muons from heavy-flavour hadron decays with increasing centrality. A suppression by a factor of about three is observed in the 10% most central collisions. The R_AA at s_NN=5.02 TeV is similar to that at s_NN=2.76 TeV. The precise R_AA measurements have the potential to distinguish between model predictions implementing different mechanisms of parton energy loss in the high-density medium formed in heavy-ion collisions. They place important constraints for the understanding of the heavy-quark interaction with the hot and dense QCD medium.

Original language	English
Article number	136558
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	820
DOIs	https://doi.org/10.1016/j.physletb.2021.136558
State	Published - 2021.09.10

Quacquarelli Symonds(QS) Subject Topics

Physics & Astronomy

Access to Document

10.1016/j.physletb.2021.136558

Cite this

@article{1143d849cd2e46218829bf7eb91369f7,

title = "Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb{\textendash}Pb collisions at sNN=5.02 and 2.76 TeV",

abstract = "Measurements of the production of muons from heavy-flavour hadron decays in Pb{\textendash}Pb collisions at sNN=5.02 and 2.76 TeV using the ALICE detector at the LHC are reported. The nuclear modification factor RAA at sNN=5.02 TeV is measured at forward rapidity (2.5T in central, semi-central, and peripheral collisions over a wide pT interval, 3T<20 GeV/c, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high pT (pT>7 GeV/c). The RAA shows an increase of the suppression of the yields of muons from heavy-flavour hadron decays with increasing centrality. A suppression by a factor of about three is observed in the 10\% most central collisions. The RAA at sNN=5.02 TeV is similar to that at sNN=2.76 TeV. The precise RAA measurements have the potential to distinguish between model predictions implementing different mechanisms of parton energy loss in the high-density medium formed in heavy-ion collisions. They place important constraints for the understanding of the heavy-quark interaction with the hot and dense QCD medium.",

author = "\{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 Z. Akbar and A. Akindinov and M. Al-Turany and Albuquerque, \{D. S.D.\} 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 T. Alt and L. Altenkamper and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and D. Andreou and A. Andronic and M. Angeletti and V. Anguelov and T. Anti{\v c}i{\'c} and F. Antinori and P. Antonioli and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and M. Arratia 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 Kim, \{E. J.\}",

note = "Publisher Copyright: {\textcopyright} 2021 European Organization for Nuclear Research, ALICE",

year = "2021",

month = sep,

day = "10",

doi = "10.1016/j.physletb.2021.136558",

language = "English",

volume = "820",

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

issn = "0370-2693",

}

TY - JOUR

T1 - Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at sNN=5.02 and 2.76 TeV

AU - 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 - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Albuquerque, D. S.D.

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 - Alt, T.

AU - Altenkamper, L.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andronic, A.

AU - Angeletti, M.

AU - Anguelov, V.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arratia, M.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Kim, E. J.

PY - 2021/9/10

Y1 - 2021/9/10

N2 - Measurements of the production of muons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=5.02 and 2.76 TeV using the ALICE detector at the LHC are reported. The nuclear modification factor RAA at sNN=5.02 TeV is measured at forward rapidity (2.5T in central, semi-central, and peripheral collisions over a wide pT interval, 3T<20 GeV/c, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high pT (pT>7 GeV/c). The RAA shows an increase of the suppression of the yields of muons from heavy-flavour hadron decays with increasing centrality. A suppression by a factor of about three is observed in the 10% most central collisions. The RAA at sNN=5.02 TeV is similar to that at sNN=2.76 TeV. The precise RAA measurements have the potential to distinguish between model predictions implementing different mechanisms of parton energy loss in the high-density medium formed in heavy-ion collisions. They place important constraints for the understanding of the heavy-quark interaction with the hot and dense QCD medium.

AB - Measurements of the production of muons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=5.02 and 2.76 TeV using the ALICE detector at the LHC are reported. The nuclear modification factor RAA at sNN=5.02 TeV is measured at forward rapidity (2.5T in central, semi-central, and peripheral collisions over a wide pT interval, 3T<20 GeV/c, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high pT (pT>7 GeV/c). The RAA shows an increase of the suppression of the yields of muons from heavy-flavour hadron decays with increasing centrality. A suppression by a factor of about three is observed in the 10% most central collisions. The RAA at sNN=5.02 TeV is similar to that at sNN=2.76 TeV. The precise RAA measurements have the potential to distinguish between model predictions implementing different mechanisms of parton energy loss in the high-density medium formed in heavy-ion collisions. They place important constraints for the understanding of the heavy-quark interaction with the hot and dense QCD medium.

UR - https://www.scopus.com/pages/publications/85113164800

U2 - 10.1016/j.physletb.2021.136558

DO - 10.1016/j.physletb.2021.136558

M3 - Journal article

AN - SCOPUS:85113164800

SN - 0370-2693

VL - 820

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 - 136558

ER -

Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at s_NN=5.02 and 2.76 TeV

Abstract

Quacquarelli Symonds(QS) Subject Topics

Access to Document

Other files and links

Fingerprint

Cite this