Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

被引：174

作者：

Acharya, S. ^{[157
]}

Acosta, F. T. ^{[29
]}

Adamova, D. ^{[111
]}

Adolfsson, J. ^{[98
]}

Aggarwal, M. M. ^{[115
]}

Rinella, G. Aglieri ^{[53
]}

Agnello, M. ^{[39
,48
]}

Agrawal, N. ^{[65
]}

Ahammed, Z. ^{[157
]}

Ahn, S. U. ^{[94
]}

Aiola, S. ^{[162
]}

Akindinov, A. ^{[53
,81
]}

Al-Turany, M. ^{[121
,122
]}

Alam, S. N. ^{[157
]}

Albuquerque, D. S. D. ^{[138
]}

Aleksandrov, D. ^{[105
]}

Alessandro, B. ^{[75
]}

Molina, R. Alfaro ^{[89
]}

Ali, Y. ^{[23
]}

Alici, A. ^{[17
,18
,40
,41
,70
]}

Alkin, A. ^{[7
]}

Alme, J. ^{[31
]}

Alt, T. ^{[86
]}

Altenkamper, L. ^{[31
]}

Altsybeev, I. ^{[156
]}

Andrei, C. ^{[64
]}

Andreou, D. ^{[53
]}

Andrews, H. A. ^{[126
]}

Andronic, A. ^{[121
,122
]}

Angeletti, M. ^{[53
]}

Anguelov, V. ^{[119
]}

Anson, C. ^{[24
]}

Anticic, T. ^{[123
]}

Antinori, F. ^{[73
]}

Antonioli, P. ^{[70
]}

Apadula, N. ^{[97
]}

Aphecetche, L. ^{[130
]}

Appelshauser, H. ^{[86
]}

Arcelli, S. ^{[40
,41
]}

Arnaldi, R. ^{[75
]}

Arnold, O. W. ^{[120
,133
]}

Arsene, I. C. ^{[30
]}

Arslandok, M. ^{[119
]}

Audurier, B. ^{[130
]}

Augustinus, A. ^{[53
]}

Averbeck, R. ^{[121
,122
]}

Azmi, M. D. ^{[25
]}

Badala, A. ^{[72
]}

Baek, Y. W. ^{[77
,93
]}

Bagnasco, S. ^{[75
]}

机构：

[1] Politecn Torino, Dipartimento DET, Turin, Italy

[2] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl, Phys, Moscow, Russia

[3] Aligarh Muslim Univ, Dept Appl Phys, Aligarh, Uttar Pradesh, India

[4] Univ Wroclaw, Inst Theoret Phys, Wroclaw, Poland

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

[6] Benemerita Univ Autonoma Puebla, Puebla, Mexico

[7] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine

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

[9] CAPSS, Kolkata, India

[10] Budker Inst Nucl Phys, Novosibirsk, Russia

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

[12] Cent China Normal Univ, Wuhan, Hubei, Peoples R China

[13] IN2P3, Ctr Calcul, Lyon, France

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

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

[16] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Venezuela

[17] Museo Stor Fis, Ctr Fermi, Rome, Italy

[18] Ctr Studi & Ric Enrico Fermi, Rome, Italy

[19] Chicago State Univ, Chicago, IL USA

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

[21] Chonbuk Natl Univ, Jeonju, South Korea

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

[23] CIIT Ctr Hlth Res, Islamabad, Pakistan

[24] Creighton Univ, Omaha, NE 68178 USA

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

[26] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA

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

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

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

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

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

[32] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[47] Grp Collegato INFN, Salerno, Italy

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

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

[50] INFN Sez Torino, Alessandria, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 11期

基金：

巴西圣保罗研究基金会; 瑞典研究理事会; 中国国家自然科学基金; 新加坡国家研究基金会; 英国科学技术设施理事会; 美国国家科学基金会; 日本学术振兴会;

关键词：

Heavy Ion Experiments; Heavy-ion collision; MULTIPLICITY DEPENDENCE; CENTRALITY DEPENDENCE; ROOT-S(NN)=130 GEV; HADRONS; SUPPRESSION; MODEL; KAON; PION;

D O I：

10.1007/JHEP11(2018)013

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：

We report the measured transverse momentum (pT) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy p sNN = 5 : 02TeV in the kinematic range of 0 : 15 < pT < 50 GeV/c and jj < 0 : 8. A signi fi cant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at p sNN = 2 : 76TeV, as well as in p-Pb collisions at p sNN = 5 : 02TeV, which is also presented. Spectra from Pb-Pb collisions are presented in nine centrality intervals and are compared to a reference spectrum from pp collisions scaled by the number of binary nucleon-nucleon collisions. For central collisions, the pT spectra are suppressed by more than a factor of 7 around 6-7 GeV/c with a signi fi cant reduction in suppression towards higher momenta up to 30 GeV/c. The nuclear modi fi cation factor RpPb, constructed from the pp and p-Pb spectra measured at the same collision energy, is consistent with unity above 8 GeV/c. While the spectra in both pp and Pb-Pb collisions are substantially harder at p sNN = 5 : 02TeV compared to 2.76TeV, the nuclear modi fi cation factors show no signi fi cant collision energy dependence. The obtained results should provide further constraints on the parton energy loss calculations to determine the transport properties of the hot and dense QCD matter.

引用

页数：33

共 63 条

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