Inclusive heavy-flavour production at central and forward rapidity in Xe-Xe collisions at , √sNN=5.44 TeV

被引：6

作者：

Acharya, S. ^{[157
]}

Adamova, D. ^{[110
]}

Adler, A. ^{[88
]}

Adolfsson, J. ^{[95
]}

Rinella, G. Aglieri ^{[48
]}

Agnello, M. ^{[31
,42
]}

Agrawal, N. ^{[68
]}

Ahammed, Z. ^{[157
]}

Ahmad, S. ^{[18
]}

Ahn, S. U. ^{[90
]}

Akbar, Z. ^{[65
]}

Akindinov, A. ^{[107
]}

Al-Turany, M. ^{[122
,123
]}

Albuquerque, D. S. D. ^{[138
]}

Aleksandrov, D. ^{[103
]}

Alessandro, B. ^{[73
]}

Alfanda, H. M. ^{[8
]}

Alfaro Molina, R. ^{[85
]}

Ali, B. ^{[18
]}

Ali, Y. ^{[16
]}

Alici, A. ^{[32
,33
]}

Alizadehvandchali, N. ^{[141
]}

Alkin, A. ^{[48
]}

Alme, J. ^{[23
]}

Alt, T. ^{[82
]}

Altenkamper, L. ^{[23
]}

Altsybeev, I ^{[129
]}

Anaam, M. N. ^{[8
]}

Andrei, C. ^{[62
]}

Andreou, D. ^{[105
]}

Andronic, A. ^{[160
]}

Angeletti, M. ^{[48
]}

Anguelov, V ^{[119
]}

Anticic, T. ^{[124
]}

Antinori, F. ^{[71
]}

Antonioli, P. ^{[68
]}

Apadula, N. ^{[94
]}

Aphecetche, L. ^{[131
]}

Appelshaeuser, H. ^{[82
]}

Arcelli, S. ^{[32
,33
]}

Arnaldi, R. ^{[73
]}

Arratia, M. ^{[94
]}

Arsene, I. C. ^{[22
]}

Arslandok, M. ^{[119
,162
]}

Augustinus, A. ^{[48
]}

Averbeck, R. ^{[122
,123
]}

Aziz, S. ^{[92
]}

Azmi, M. D. ^{[18
]}

Badala, A. ^{[70
]}

Baek, Y. W. ^{[55
]}

机构：

[1] Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia

[2] AGH Univ Sci & Technol, Krakow, Poland

[3] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[4] Bose Inst, Dept Phys, Kolkata, India

[5] Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India

[6] Budker Inst Nucl Phys, Novosibirsk, Russia

[7] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA

[8] Cent China Normal Univ, Wuhan, Peoples R China

[9] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba

[10] Ctr Invest & Estudios Avanzados CINVESTAV, Mexico City, DF, Mexico

[11] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Mexico

[12] Chicago State Univ, Chicago, IL USA

[13] China Inst Atom Energy, Beijing, Peoples R China

[14] Chungbuk Natl Univ, Cheongju, South Korea

[15] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

[16] COMSATS Univ Islamabad, Islamabad, Pakistan

[17] Creighton Univ, Omaha, NE 68178 USA

[18] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India

[19] Pusan Natl Univ, Dept Phys, Pusan, South Korea

[20] Sejong Univ, Dept Phys, Seoul, South Korea

[21] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[22] Univ Oslo, Dept Phys, Oslo, Norway

[23] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[24] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[25] Sezione Ist Nazl Fis Nucl, Rome, Italy

[26] Univ Cagliari, Dipartimento Fis, Cagliari, Italy

[27] Sezione Ist Nazl Fis Nucl, Cagliari, Italy

[28] Univ Trieste, Dipartimento Fis, Trieste, Italy

[29] Sezione Ist Nazl Fis Nucl, Trieste, Italy

[30] Univ Turin, Dipartimento Fis, Turin, Italy

[31] Sezione Ist Nazl Fis Nucl, Turin, Italy

[32] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[33] Sezione Ist Nazl Fis Nucl, Bologna, Italy

[34] Univ Catania, Dipartimento Fis & Astron, Catania, Italy

[35] Sezione Ist Nazl Fis Nucl, Catania, Italy

[36] Univ Padua, Dipartimento Fis & Astron, Padua, Italy

[37] Sezione Ist Nazl Fis Nucl, Padua, Italy

[38] Univ Pavia, Dipartimento Fis & Nucl & Teor, Pavia, Italy

[39] Sezione Ist Nazl Fis Nucl, Pavia, Italy

[40] Univ Salerno, Dipartimento Fis ER Caianiello, Salerno, Italy

[41] Grp Collegato INFN, Salerno, Italy

[42] Politecn Torino, Dipartimento DISAT, Turin, Italy

[43] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy

[44] Ist Nazl Fis Nucl, Sez Torino, Alessandria, Italy

[45] Univ Messina, Dipartimento Sci MIFT, Messina, Italy

[46] Dipartimento Interateneo Fis M Merlin, Bari, Italy

[47] Sezione Ist Nazl Fis Nucl, Bari, Italy

[48] European Org Nucl Res CERN, Geneva, Switzerland

[49] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[50] Western Norway Univ Appl Sci, Fac Engn & Sci, Bergen, Norway

来源：

PHYSICS LETTERS B | 2021年 / 819卷

基金：

英国科学技术设施理事会; 日本学术振兴会; 奥地利科学基金会; 美国能源部; 俄罗斯基础研究基金会; 巴西圣保罗研究基金会; 瑞典研究理事会; 美国国家科学基金会; 中国国家自然科学基金; 新加坡国家研究基金会; 俄罗斯科学基金会;

关键词：

RADIATIVE ENERGY-LOSS; PB-PB COLLISIONS; HADRON DECAYS; TRANSVERSE-MOMENTUM; J/PSI PRODUCTION; PP COLLISIONS; SUPPRESSION; ELECTRONS; DEPENDENCE; MESONS;

D O I：

10.1016/j.physletb.2021.136437

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The first measurements of the production of muons and electrons from heavy-flavour hadron decays in Xe-Xe collisions at root s(NN) = 5.44 TeV, using the ALICE detector at the LHC, are reported. The measurement of the nuclear modification factor RAA is performed as a function of transverse momentum pT in several centrality classes at forward rapidity (2.5 < y < 4) and midrapidity (vertical bar y vertical bar < 0.8) for muons and electrons from heavy-flavour hadron decays, respectively. A suppression by a factor up to about 2.5 compared to the binary-scaled pp reference is observed in central collisions at both central and forward rapidities. The RAA of muons from heavy-flavour hadron decays is compared to previous measurements in Pb-Pb collisions at root sNN = 5.02 TeV. When the nuclear modification factors are compared in the centrality classes 0-10% for Xe-Xe collisions and 10-20% for Pb-Pb collisions, which have similar charged-particle multiplicity density, a similar suppression, with R-AA similar to 0.4 in the p(T) interval 4 < p(T) < 8 GeV/c, is observed. The comparison of the measured R-AA values in the two collision systems brings new insights on the properties of the quark-gluon plasma by investigating the system-size and geometry dependence of medium-induced parton energy loss. The results of muons and electrons from heavy-flavour hadron decays provide new constraints to model calculations. (C) 2021 The Author. Published by Elsevier B.V.

引用

页数：16

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