Azimuthal anisotropy of charged jet production in √sNN=2.76 TeV Pb-Pb collisions

被引:35
作者
Adam, J. [53 ]
Adamova, D. [95 ]
Aggarwal, M. M. [99 ]
Rinella, G. Aglieri [49 ]
Agnello, M. [34 ]
Agrawal, N.
Ahmmed, Z. [139 ]
Ahn, S. U. [80 ]
Aiola, S. [143 ]
Akindinov, A. [70 ]
Alam, S. N. [139 ]
Aleksandrov, D. [112 ]
Alessandro, B. [34 ]
Alexandre, D. [114 ]
Molina, R. Alfaro [76 ]
Alici, A. [14 ,15 ,36 ]
Alkin, A. [3 ]
Almaraz, J. R. M. [126 ]
Alme, J. [51 ]
Alt, T. [56 ]
Altinpinar, S. [21 ]
Altsybeev, I. [138 ]
Prado, C. Alves Garcia [127 ]
Andrei, C. [90 ]
Andronic, A. [108 ,109 ]
Anguelov, V. [105 ]
Anielski, J.
Anticic, T. [110 ]
Antinori, F. [40 ]
Antonioli, R. [36 ]
Aphecetche, L. [120 ]
Appelshaeuser, H. [66 ]
Arcelli, S. [35 ,36 ]
Arnaldi, R. [34 ]
Arnold, O. W. [50 ,104 ]
Arsene, I. C. [25 ]
Arslandok, M. [66 ]
Audurier, B. [120 ]
Augustinus, A. [49 ]
Averbeck, R. [108 ,109 ]
Azmi, M. D. [22 ]
Badala, A. [38 ]
Baek, Y. W. [57 ,79 ]
Bagnasco, S. [34 ]
Bailhache, R. [66 ]
Bala, R. [102 ]
Baldisseri, A. [18 ]
Bara, R. C. [73 ]
Barbano, A. M. [33 ,34 ]
Barbera, R. [37 ,38 ]
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 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] Ctr Calcul IN2P3, Villeurbanne, France
[10] Ctr AplicacTecnol Desarrollo Nucl CEADEN, Havana, Cuba
[11] CIEMAT, Madrid, Spain
[12] CINVESTAV, Mexico City 14000, DF, Mexico
[13] CINVESTAV, Merida, Mexico
[14] Ctr Fermi Museo Stor Fis, Rome, Italy
[15] Ctr ro 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 & IGFAE, Santiago De Compostela, Spain
[21] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[22] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India
[23] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA
[24] Sejong Univ, Dept Phys, Seoul, South Korea
[25] Univ Oslo, Dept Phys, Oslo, Norway
[26] Politecn Bari, Dipartimento Elettrotecn Elettron, Bari, Italy
[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] ER Caianiello Univ, Dipartimento Fis, Salerno, Italy
[42] Grp Collegato INFN, Salerno, Italy
[43] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy
[44] Grp Collegato 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; 美国能源部; 芬兰科学院; 俄罗斯基础研究基金会; 瑞典研究理事会; 美国国家科学基金会; 新加坡国家研究基金会; 英国科学技术设施理事会; 巴西圣保罗研究基金会; 日本学术振兴会; 欧洲研究理事会;
关键词
HEAVY-ION COLLISIONS; PLUS AU COLLISIONS; RADIATIVE ENERGY-LOSS; QUARK-GLUON PLASMA; TRANSVERSE-MOMENTUM; SUPPRESSION; DEPENDENCE; FLOW; MODEL; QCD;
D O I
10.1016/j.physletb.2015.12.047
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 < p(T)(ch) (jet) < 90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
引用
收藏
页码:511 / 525
页数:15
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