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

被引:4
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
基金
新加坡国家研究基金会; 俄罗斯科学基金会; 巴西圣保罗研究基金会; 美国国家科学基金会; 英国科学技术设施理事会; 日本学术振兴会; 瑞典研究理事会; 美国能源部; 奥地利科学基金会; 俄罗斯基础研究基金会; 中国国家自然科学基金;
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.
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页数:16
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