General balance functions of identified charged hadron pairs of (π, K, p) in Pb-Pb collisions at √sNN=2.76 TeV

被引：11

作者：

Acharya, S. ^{[154
]}

Adamova, D. ^{[108
]}

Adler, A. ^{[86
]}

Adolfsson, J. ^{[93
]}

Rinella, G. Aglieri ^{[45
]}

Agnello, M. ^{[29
,39
]}

Agrawal, N. ^{[65
]}

Ahammed, Z. ^{[154
]}

Ahmad, S. ^{[18
]}

Ahn, S. U. ^{[88
]}

Ahuja, I ^{[49
]}

Akbar, Z. ^{[62
]}

Akindinov, A. ^{[105
]}

Al-Turany, M. ^{[120
,121
]}

Alam, S. N. ^{[18
]}

Aleksandrov, D. ^{[101
]}

Alessandro, B. ^{[71
]}

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

Alfaro Molina, R. ^{[83
]}

Ali, B. ^{[18
]}

Ali, Y. ^{[16
]}

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

Alizadehvandchali, N. ^{[138
]}

Alkin, A. ^{[45
]}

Alme, J. ^{[23
]}

Alt, T. ^{[80
]}

Altsybeev, I ^{[126
]}

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

Andrei, C. ^{[59
]}

Andreou, D. ^{[103
]}

Andronic, A. ^{[157
]}

Angeletti, M. ^{[45
]}

Anguelov, V ^{[117
]}

Antinori, F. ^{[68
]}

Antonioli, P. ^{[65
]}

Anuj, C. ^{[18
]}

Apadula, N. ^{[92
]}

Aphecetche, L. ^{[128
]}

Appelshaeuser, H. ^{[80
]}

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

Arnaldi, R. ^{[71
]}

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

Arslandok, M. ^{[159
]}

Augustinus, A. ^{[45
]}

Averbeck, R. ^{[120
,121
]}

Aziz, S. ^{[90
]}

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

Badala, A. ^{[67
]}

Baek, Y. W. ^{[52
]}

Bai, X. ^{[120
,121
,142
]}

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, Yucatan, 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 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 Pavia, Dipartimento Fis & Nucl & Teor, Pavia, Italy

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

[38] Grp Collegato INFN, Salerno, Italy

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

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

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

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

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

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

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

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

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

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

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

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

来源：

PHYSICS LETTERS B | 2022年 / 833卷

基金：

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

关键词：

HEAVY-ION COLLISIONS; J/PSI SUPPRESSION; DEPENDENCE; RAPIDITY; FLOW;

D O I：

10.1016/j.physletb.2022.137338

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

First measurements of balance functions (BFs) of all combinations of identified charged hadron (pi, K, p) pairs in Pb-Pb collisions at root s(NN) = 2.76 TeV recorded by the ALICE detector are presented. The BF measurements are carried out as two-dimensional differential correlators versus the relative rapidity (Delta y) and azimuthal angle (Delta phi) of hadron pairs, and studied as a function of collision centrality. The Delta phi dependence of BFs is expected to be sensitive to the light quark diffusivity in the quark-gluon plasma. While the BF azimuthal widths of all pairs substantially decrease from peripheral to central collisions, the longitudinal widths exhibit mixed behaviors: BFs of pi pi and cross-species pairs narrow significantly in more central collisions, whereas those of KK and pp are found to be independent of collision centrality. This dichotomy is qualitatively consistent with the presence of strong radial flow effects and the existence of two stages of quark production in relativistic heavy-ion collisions. Finally, the first measurements of the collision centrality evolution of BF integrals are presented, with the observation that charge balancing fractions are nearly independent of collision centrality in Pb-Pb collisions. Overall, the results presented provide new and challenging constraints for theoretical models of hadron production and transport in relativistic heavy-ion collisions. (C) 2022 European Organization for Nuclear Research, ALICE. Published by Elsevier B.V.

引用

页数：13

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