Prompt and non-prompt J/ψ and ψ(2S) suppression at high transverse momentum in 5.02 TeV Pb+Pb collisions with the ATLAS experiment

被引：14

作者：

Aaboud, M. ^{[53
,54
]}

Aad, G. ^{[151
]}

Abbott, B. ^{[178
]}

Abdinov, O. ^{[17
]}

Abeloos, B. ^{[182
]}

Abidi, S. H. ^{[228
]}

AbouZeid, O. S. ^{[202
]}

Abraham, N. L. ^{[214
]}

Abramowicz, H. ^{[221
]}

Abreu, H. ^{[220
]}

Abulaiti, Y. ^{[8
]}

Acharya, B. S. ^{[98
,99
,258
]}

Adachi, S. ^{[223
,224
]}

Adamczyk, L. ^{[128
]}

Adelman, J. ^{[172
]}

Adersberger, M. ^{[164
]}

Adye, T. ^{[200
]}

Affolder, A. A. ^{[202
]}

Afik, Y. ^{[220
]}

Agheorghiesei, C. ^{[39
]}

Aguilar-Saavedra, J. A. ^{[190
,195
]}

Ahmadov, F. ^{[17
,121
]}

Aielli, G. ^{[112
,113
]}

Akatsuka, S. ^{[131
]}

Akesson, T. P. A. ^{[145
]}

Akilli, E. ^{[77
]}

Akimov, A. V. ^{[160
]}

Alberghi, G. L. ^{[32
,33
]}

Albert, J. ^{[239
]}

Albicocco, P. ^{[73
,74
]}

Alconada Verzini, M. J. ^{[135
,136
]}

Alderweireldt, S. ^{[170
]}

Aleksa, M. ^{[56
]}

Aleksandrov, I. N. ^{[121
]}

Alexa, C. ^{[38
]}

Alexander, G. ^{[221
]}

Alexopoulos, T. ^{[12
]}

Alhroob, M. ^{[178
]}

Ali, B. ^{[197
]}

Alimonti, G. ^{[102
]}

Alison, J. ^{[57
]}

Alkire, S. P. ^{[205
]}

Allaire, C. ^{[182
]}

Allbrooke, B. M. M. ^{[214
]}

Allen, B. W. ^{[181
]}

Allport, P. P. ^{[30
]}

Aloisio, A. ^{[104
,105
]}

Alonso, A. ^{[60
]}

Alonso, F. ^{[135
,136
]}

Alpigiani, C. ^{[205
]}

机构：

[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, IN2P3,LAPP, Annecy, France

[8] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[9] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[10] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA

[11] Natl & Kapodistrian Univ Athens, Phys Dept, Athens, Greece

[12] Natl Tech Univ Athens, Phys Dept, Zografos, Greece

[13] Univ Texas Austin, Dept Phys, Austin, TX USA

[14] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey

[15] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey

[16] Bogazici Univ, Dept Phys, Istanbul, Turkey

[17] Azerbaijan Acad Sci, Inst Phys, Baku, Azerbaijan

[18] Barcelona Inst Sci & Technol, IFAE, Barcelona, Spain

[19] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[20] Tsinghua Univ, Phys Dept, Beijing, Peoples R China

[21] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

[22] UCAS, Beijing, Peoples R China

[23] Univ Belgrade, Inst Phys, Belgrade, Serbia

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

[25] Lawrence Berkeley Natl Lab, Phys Div, Berkeley, CA USA

[26] Univ Calif Berkeley, Berkeley, CA 94720 USA

[27] Humboldt Univ, Inst Phys, Berlin, Germany

[28] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[29] Univ Bern, Lab High Energy Phys, Bern, Switzerland

[30] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[31] Univ Antonio Narino, Ctr Invest, Bogota, Colombia

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

[33] INFN, Sez Bologna, Bologna, Italy

[34] Univ Bonn, Phys Inst, Bonn, Germany

[35] Boston Univ, Dept Phys, Boston, MA USA

[36] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[37] Transilvania Univ Brasov, Brasov, Romania

[38] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[39] Alexandru Ioan Cuza Univ, Dept Phys, Iasi, Romania

[40] Natl Inst Res & Dev Isotop & Mol Technol, Phys Dept, Cluj Napoca, Romania

[41] West Univ Timisoara, Timisoara, Romania

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

[43] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice, Slovakia

[44] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[45] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[46] Univ Cambridge, Cavendish Lab, Cambridge, England

[47] Univ Cape Town, Dept Phys, Cape Town, South Africa

[48] Univ Johannesburg, Dept Mech Engn Sci, Johannesburg, South Africa

[49] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa

[50] Carleton Univ, Dept Phys, Ottawa, ON, Canada

来源：

EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 09期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会; 欧盟地平线“2020”;

关键词：

PB-PB COLLISIONS; QUARKONIUM PRODUCTION; MONTE-CARLO; NUCLEAR; CHARMONIA; RAPIDITY;

D O I：

10.1140/epjc/s10052-018-6219-9

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A measurement of J/psi and psi(2S) production is presented. It is based on a data sample from Pb+Pb collisions at root s(NN) = 5.02 TeV and pp collisions at root s = 5.02 TeV recorded by the ATLAS detector at the LHC in 2015, corresponding to an integrated luminosity of 0.42 nb(-1) and 25 pb(-1) in Pb+Pb and pp, respectively. The measurements of per-event yields, nuclear modification factors, and non-prompt fractions are performed in the dimuon decay channel for 9 < p(T)(mu mu) < 40 GeV in dimuon transverse momentum, and -2 < y(mu mu) < 2 in rapidity. Strong suppression is found in Pb+Pb collisions for both prompt and non-prompt J/psi, increasing with event centrality. The suppression of prompt psi(2S) is observed to be stronger than that of J/psi, while the suppression of non-prompt psi(2S) is equal to that of the non-prompt J/psi within uncertainties, consistent with the expectation that both arise from b-quarks propagating through the medium. Despite prompt and non-prompt J/psi arising from different mechanisms, the dependence of their nuclear modification factors on centrality is found to be quite similar.

引用

页数：28

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