Measurement of beauty-strange meson production in Pb-Pb collisions at √sNN=5.02 TeV via non-prompt Ds+ mesons

被引：5

作者：

Acharya, S. ^{[135
,143
]}

Adamova, D. ^{[95
]}

Adler, A. ^{[79
]}

Rinella, G. Aglieri ^{[42
]}

Agnello, M. ^{[29
,38
]}

Agrawal, N. ^{[60
]}

Ahammed, Z. ^{[143
]}

Ahmad, S. ^{[17
]}

Ahn, S. U. ^{[80
]}

Ahuja, I ^{[47
]}

Akindinov, A. ^{[151
]}

Al-Turany, M. ^{[108
]}

Aleksandrov, D. ^{[151
]}

Alessandro, B. ^{[65
]}

Alfanda, H. M. ^{[7
]}

Alfaro Molina, R. ^{[76
]}

Ali, B. ^{[17
]}

Ali, Y. ^{[15
]}

Alici, A. ^{[30
,31
]}

Alizadehvandchali, N. ^{[124
]}

Alkin, A. ^{[42
]}

Alme, J. ^{[22
]}

Alocco, G. ^{[61
]}

Alt, T. ^{[73
]}

Altsybeev, I ^{[151
]}

Anaam, M. N. ^{[7
]}

Andrei, C. ^{[55
]}

Andronic, A. ^{[146
]}

Anguelov, V ^{[105
]}

Antinori, F. ^{[63
]}

Antonioli, P. ^{[60
]}

Anuj, C. ^{[17
]}

Apadula, N. ^{[83
]}

Aphecetche, L. ^{[114
]}

Appelshaeuser, H. ^{[73
]}

Arcelli, S. ^{[30
,31
]}

Arnaldi, R. ^{[65
]}

Arsene, I. C. ^{[21
]}

Arslandok, M. ^{[148
]}

Augustinus, A. ^{[42
]}

Averbeck, R. ^{[108
]}

Aziz, S. ^{[139
]}

Azmi, M. D. ^{[17
]}

Badala, A. ^{[62
]}

Baek, Y. W. ^{[50
]}

Bai, X. ^{[108
]}

Bailhache, R. ^{[73
]}

Bailung, Y. ^{[57
]}

Bala, R. ^{[100
]}

Balbino, A. ^{[29
,38
]}

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] Bose Inst, Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India

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

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

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

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

[10] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Yucatan, Mexico

[11] Chicago State Univ, Chicago, IL USA

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

[13] Chungbuk Natl Univ, Cheongju, South Korea

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

[15] COMSATS Univ Islamabad, Islamabad, Pakistan

[16] Creighton Univ, Omaha, NE 68178 USA

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

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

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

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

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

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

[23] Univ Pavia, Dipartimento Fis, Pavia, Italy

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

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

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

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

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

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

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

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

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

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

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

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

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

[37] Ist Nazl Fis Nucl, Grp Coll, Salerno, Italy

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

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

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

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

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

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

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

[45] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic

[46] Sofia Univ, Fac Phys, Sofia, Bulgaria

[47] Safarik Univ, Fac Sci, Kosice, Slovakia

[48] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany

[49] Fudan Univ, Shanghai, Peoples R China

[50] Gangneung Wonju Natl Univ, Kangnung, South Korea

来源：

PHYSICS LETTERS B | 2023年 / 846卷

基金：

巴西圣保罗研究基金会; 瑞典研究理事会; 新加坡国家研究基金会; 美国能源部; 欧盟地平线“2020”; 中国国家自然科学基金; 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; 奥地利科学基金会;

关键词：

QUARK-GLUON PLASMA; ENERGY-LOSS; HEAVY-FLAVOR; SUPPRESSION; MATTER; QCD; PERSPECTIVE; J/PSI; HOT; PP;

D O I：

10.1016/j.physletb.2022.137561

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production yields of non-prompt D-s(+) smesons, namely D-s(+) smesons from beauty-hadron decays, were measured for the first time as a function of the transverse momentum (p(T)) at midrapidity (|y| < 0.5) in central and semi-central Pb-Pb collisions at a centre-of-mass energy per nucleon pair root s(NN)= 5.02TeVwith the ALICE experiment at the LHC. The D-s(+) smesons and their charge conjugates were reconstructed from the hadronic decay channel D-s(+) -> phi pi+, with phi -> K- K+, in the 4 < pT< 36GeV/cand 2 < pT< 24GeV/cintervals for the 0-10% and 30-50% centrality classes, respectively. The measured yields of non-prompt D-s(+) smesons are compared to those of prompt D-s(+) sand non-prompt D-0 mesons by calculating the ratios of the production yields in Pb-Pb collisions and the nuclear modification factor R-AA. The ratio between the R-AA of non-prompt D-s(+) sand prompt D-s(+) smesons, and that between the R-AA of non-prompt D-s(+) sand non-prompt D-0 mesons in central Pb-Pb collisions are found to be on average higher than unity in the 4 < p(T) < 12GeV/c interval with a statistical significance of about 1.6 sigma and 1.7 sigma, respectively. The measured R-AA ratios are compared with the predictions of theoretical models of heavy-quark transport in a hydrodynamically expanding QGP that incorporate hadronisation via quark recombination. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.

引用

页数：16

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