Centrality, rapidity and transverse momentum dependence of J/Ψ suppression in Pb-Pb collisions at √SNN=2.76TeV

被引：192

作者：

Abelev, B. ^{[81
]}

Adam, J. ^{[44
]}

Adamova, D. ^{[89
]}

Aggarwal, M. M. ^{[93
]}

Rinella, G. Aglieri ^{[40
]}

Agnello, M. ^{[99
,116
]}

Agocs, A. G. ^{[139
]}

Agostinelliz, A. ^{[29
,36
,37
,40
,47
,56
,61
,62
,63
,64
,68
,87
,98
,102
,105
,117
]}

Agrawal, N. ^{[51
]}

Ahammed, Z. ^{[136
]}

Ahmad, N. ^{[20
]}

Masoodi, A. Ahmad ^{[20
]}

Ahmed, I. ^{[16
]}

Ahn, S. U. ^{[73
]}

Ahn, S. A. ^{[73
]}

Aimo, I. ^{[99
,116
]}

Aiola, S. ^{[140
]}

Ajaz, M. ^{[16
]}

Akindinov, A. ^{[29
,37
,40
,56
,62
,63
,102
]}

Aleksandrov, D.

Alessandro, B. ^{[116
]}

Alexandre, D. ^{[107
]}

Alici, A. ^{[13
,40
,56
,110
]}

Alkin, A. ^{[3
,40
,56
]}

Alme, J. ^{[42
]}

Alt, T. ^{[46
]}

Altini, V. ^{[34
,36
,37
,90
]}

Altinpinar, S. ^{[19
]}

Altsybeev, I. ^{[134
]}

Prado, C. Alves Garcia ^{[124
]}

Andrei, C. ^{[84
]}

Andronic, A. ^{[40
,56
,102
,103
]}

Anguelov, V. ^{[98
]}

Anielski, J. ^{[58
]}

Anticic, T. ^{[104
]}

Antinori, F. ^{[113
]}

Antonioli, P. ^{[110
]}

Aphecetche, L. ^{[117
]}

Appelshauser, H. ^{[56
]}

Arborbr, N. ^{[76
,77
]}

Arcelli, S.

Armesto, N. ^{[17
,18
]}

Arnaldi, R. ^{[116
]}

Aronsson, T. ^{[140
]}

Arsene, I. C. ^{[23
,102
,103
]}

Arslandok, M. ^{[56
]}

Augustinus, A. ^{[40
]}

Averbeck, R. ^{[102
,103
]}

Awes, T. C. ^{[90
]}

Azmi, M. D. ^{[20
,95
]}

机构：

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

[2] Benemerita Univ Autonoma Puebla, Puebla, Mexico

[3] Bogolyubov Inst Theoret Phys, Kiev, Ukraine

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

[5] 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 Calcul IN2P3, Villeurbanne, France

[10] CEADEN, Havana, Cuba

[11] CIEMAT, Madrid, Spain

[12] CINVESTAV, Mexico City, DF, Mexico

[13] Ctr Fermi, Museo Stor Fis & Ctr Studi & Ric, Rome, Italy

[14] Chicago State Univ, Chicago, IL USA

[15] IRFU, Commissariat Energie Atom, Saclay, France

[16] CIIT Ctr Hlth Res, Islamabad, Pakistan

[17] Univ Santiago Compostela, Dept Fis Particulas, Santiago De Compostela, Spain

[18] Univ Santiago Compostela, IGFAE, Santiago De Compostela, Spain

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

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

[21] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

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

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

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

[25] Sezione INFN Rome, Rome, Italy

[26] Univ & Sez INFN, Dipartimento Fis, Cagliari, Italy

[27] Univ & Sez INFN, Dipartmento Fis, Trieste, Italy

[28] Univ & Sez INFN, Dipartimento Fis, Turin, Italy

[29] Univ & Sez INFN, Dipartimento Fis, Bologna, Italy

[30] Univ & Sez INFN, Dipartimento Fis, Catania, Italy

[31] Univ & Sez INFN, Dipartimento Fis, Padua, Italy

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

[33] Grp Collegato INFN, Salerno, Italy

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

[35] Grp Collegato INFN, Alessandria, Italy

[36] Dipartimento Interateneo Fisica M Merlin, Bari, Italy

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

[38] Lund Univ, Div Expt High Energy Phys, Lund, Sweden

[39] Univ Tubingen, Tubingen, Germany

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

[41] Tech Univ Munich, Excellence Cluster Univ, D-80290 Munich, Germany

[42] Bergen Univ Coll, Fac Engn, Bergen, Norway

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

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

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

[46] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60054 Frankfurt, Germany

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

[48] Gauhati Univ, Dept Phys, Gauhati, India

[49] HIP, Helsinki, Finland

[50] Hiroshima Univ, Hiroshima, Japan

来源：

PHYSICS LETTERS B | 2014年 / 734卷

基金：

芬兰科学院; 巴西圣保罗研究基金会; 欧洲研究理事会; 美国国家科学基金会; 新加坡国家研究基金会; 中国国家自然科学基金;

关键词：

Relativistic heavy ion collisions; Quark gluon plasma; Quarkonium; J/Psi suppression; Experimental results; QED RADIATIVE-CORRECTIONS; UNIVERSAL MONTE-CARLO; PP COLLISIONS; PHOTOS; MODEL;

D O I：

10.1016/j.physletb.2014.05.064

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The inclusive J/.nuclear modification factor (R-AA) in Pb-Pb collisions at root(NN)-N-S = 2.76TeVhas been measured by ALICE as a function of centrality in the e+ e-decay channel at mid-rapidity (| y| < 0.8) and as a function of centrality, transverse momentum and rapidity in the + -decay channel at forward-rapidity (2.5 < y < 4). The J/.yields measured in Pb-Pb are suppressed compared to those in ppcollisions scaled by the number of binary collisions. The RAAintegrated over a centrality range corresponding to 90% of the inelastic Pb-Pb cross section is 0.72 - 0.06(stat.) - 0.10(syst.) at mid-rapidity and 0.58 - 0.01(stat.) - 0.09(syst.) at forward-rapidity. At low transverse momentum, significantly larger values of RAAare measured at forward-rapidity compared to measurements at lower energy. These features suggest that a contribution to the J/.yield originates from charm quark (re) combination in the deconfined partonic medium. (C) 2014 The Authors. Published by Elsevier B. V.

引用

页码：314 / 327

页数：14

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