Anisotropic Flow of Charged Particles in Pb-Pb Collisions at √SNN=5.02 TeV

被引:142
作者
Adam, J. [53 ]
Adamova, D. [98 ,99 ]
Aggarwal, M. M. [103 ]
Rinella, G. Aglieri [49 ]
Agnello, M. [34 ]
Agrawal, N. [61 ]
Ahammed, Z. [141 ]
Ahmad, S. [23 ]
Ahn, S. U. [82 ]
Aiola, S. [145 ]
Akindinov, A. [72 ]
Alam, S. N. [141 ]
Albuquerque, D. S. D. [130 ]
Aleksandrov, D. [94 ]
Alessandro, B. [34 ]
Alexandre, D. [117 ]
Alfaro Molina, R. [78 ]
Alici, A. [14 ,15 ,36 ]
Alkin, A. [3 ]
Almaraz, J. R. M. [128 ]
Alme, J. [51 ]
Alt, T. [56 ]
Altinpinar, S. [22 ]
Altsybeev, I. [140 ]
Alves Garcia Prado, C. [129 ]
Andrei, C. [92 ]
Andronic, A. [112 ,113 ]
Anguelov, V. [109 ]
Anticic, T. [114 ]
Antinori, F. [40 ]
Antonioli, P. [36 ]
Aphecetche, L. [122 ]
Appelshaeuser, H. [67 ]
Arcelli, S. [35 ,36 ]
Arnaldi, R. [34 ]
Arnold, O. W. [50 ,108 ]
Arsene, I. C. [26 ]
Arslandok, M. [67 ]
Audurier, B. [122 ]
Augustinus, A. [49 ]
Averbeck, R. [112 ,113 ]
Azmi, M. D. [23 ]
Badala, A. [38 ]
Baek, Y. W. [81 ]
Bagnasco, S. [34 ]
Bailhache, R. [67 ]
Bala, R. [106 ]
Balasubramanian, S. [145 ]
Baldisseri, A. [18 ]
Baral, R. C. [75 ]
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] Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India
[6] Budker Inst Nucl Phys, Novosibirsk 630090, 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] IN2P3, Ctr Calcul, Villeurbanne, France
[10] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba
[11] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain
[12] Ctr Invest & Estudios Avanzados CINVESTAV, Mexico City, DF, Mexico
[13] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Mexico
[14] Ctr Fermi Museo Stor Fis, Rome, Italy
[15] Ctr Studi & Ric Enrico Fermi, Rome, Italy
[16] Chicago State Univ, Chicago, IL USA
[17] China Inst Atom Energy, Beijing, Peoples R China
[18] IRFU, Commissariat Energie Atom, Saclay, France
[19] COMSATS Inst Informat Technol CIIT, Islamabad, Pakistan
[20] Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela, Spain
[21] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain
[22] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[23] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India
[24] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA
[25] Sejong Univ, Dept Phys, Seoul, South Korea
[26] Univ Oslo, Dept Phys, Oslo, Norway
[27] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[28] Sez INFN Rome, Rome, Italy
[29] Univ Cagliari, Dipartimento Fis, Cagliari, Italy
[30] Sezione Ist Nazl Fis Nucl, Cagliari, Italy
[31] Univ Trieste, Dipartimento Fis, Trieste, Italy
[32] Sezione Ist Nazl Fis Nucl, Trieste, Italy
[33] Univ Turin, Dipartimento Fis, Turin, Italy
[34] Sezione Ist Nazl Fis Nucl, Turin, Italy
[35] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[36] Sezione Ist Nazl Fis Nucl, Bologna, Italy
[37] Univ Catania, Dipartimento Fis & Astron, Catania, Italy
[38] Sezione Ist Nazl Fis Nucl, Catania, Italy
[39] Univ Padua, Dipartimento Fis & Astron, Padua, Italy
[40] Sezione Ist Nazl Fis Nucl, Padua, Italy
[41] Univ Salerno, Dipartimento Fis ER Caianiello, I-84100 Salerno, Italy
[42] Grp Collegato INFN, Salerno, Italy
[43] Univ Piemonte Orientate, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy
[44] Grp Collegaio INFN, Alessandria, Italy
[45] Dipartimento Interateneo Fis M Merlin, Bari, Italy
[46] Sezione Ist Nazl Fis Nucl, Bari, Italy
[47] Lund Univ, Div Expt High Energy Phys, Lund, Sweden
[48] Univ Tubingen, Tubingen, Germany
[49] European Org Nucl Res CERN, Geneva, Switzerland
[50] Tech Univ Munich, Excellence Cluster Universe, D-80290 Munich, Germany
基金
中国国家自然科学基金; 巴西圣保罗研究基金会; 美国国家科学基金会; 俄罗斯基础研究基金会; 英国科学技术设施理事会; 美国能源部; 新加坡国家研究基金会; 欧洲研究理事会; 瑞典研究理事会; 日本学术振兴会; 芬兰科学院;
关键词
ELLIPTIC FLOW;
D O I
10.1103/PhysRevLett.116.132302
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the first results of elliptic (v2), triangular (v3), and quadrangular (v4) flow of charged particles in Pb-Pb collisions at a center-of-mass energy per nucleon pair of root s(NN) = 5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurements are performed in the central pseudorapidity region vertical bar n vertical bar < 0.8 and for the transverse momentum range 0.2 < p(T) < 5 GeV/c. The anisotropic flow is measured using two-particle correlations with a pseudorapidity gap greater than one unit and with the multiparticle cumulant method. Compared to results from Pb-Pb collisions at root s(NN) = 2.76 TeV, the anisotropic flow coefficients v2, v3, and v4 are found to increase by (3.0 +/- 0.6)%, (4.3 +/- 1.4)%, and (10.2 +/- 3.8)%, respectively, in the centrality range 0%-50%. This increase can be attributed mostly to an increase of the average transverse momentum between the two energies. The measurements are found to be compatible with hydrodynamic model calculations. This comparison provides a unique opportunity to test the validity of the hydrodynamic picture and the power to further discriminate between various possibilities for the temperature dependence of shear viscosity to entropy density ratio of the produced matter in heavy-ion collisions at the highest energies.
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页数:12
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