Long-range angular correlations on the near and away side in p-Pb collisions at √SNN=5.02 TeV

被引：125

作者：

Abelev, Betty ^{[86
]}

Adam, Jaroslav ^{[51
]}

Adamova, Dagmar ^{[94
]}

Adare, Andrew Marshall ^{[135
]}

Aggarwal, Madan ^{[98
]}

Rinella, Gianluca Aglieri ^{[47
]}

Agnello, Michelangelo ^{[27
,105
]}

Agocs, Andras Gabor ^{[134
]}

Agostinelli, Andrea ^{[36
,37
]}

Ahammed, Zubayer ^{[130
]}

Ahmad, Nazeer ^{[21
]}

Ahmad, Arshad ^{[21
]}

Ahn, Sul-Ah ^{[79
]}

Ahn, Sang Un ^{[54
,79
]}

Ajaz, Muhammad ^{[18
]}

Akindinov, Alexander ^{[65
]}

Aleksandrov, Dmitry ^{[112
]}

Alessandro, Bruno ^{[27
]}

Alici, Andrea ^{[14
,15
,37
]}

Alkin, Anton ^{[3
,5
]}

Almaraz Avina, Erick Jonathan ^{[75
]}

Alme, Johan ^{[49
]}

Alt, Torsten ^{[53
]}

Altini, Valerio ^{[44
,45
]}

Altinpinar, Sedat ^{[22
]}

Altsybeev, Igor ^{[131
]}

Andrei, Cristian ^{[90
]}

Andronic, Anton ^{[108
,109
]}

Anguelov, Venelin ^{[104
]}

Anielski, Jonas ^{[73
]}

Anson, Christopher Daniel ^{[23
]}

Anticic, Tome ^{[110
]}

Antinori, Federico ^{[39
]}

Antonioli, Pietro ^{[37
]}

Aphecetche, Laurent Bernard ^{[117
]}

Appelshauser, Harald ^{[71
]}

Arbor, Nicolas ^{[82
]}

Arcelli, Silvia ^{[36
,37
]}

Arend, Andreas ^{[71
]}

Armesto, Nestor ^{[19
,20
]}

Arnaldi, Roberta ^{[27
]}

Aronsson, Tomas Robert ^{[135
]}

Arsene, Ionut Cristian ^{[108
,109
]}

Arslandok, Mesut ^{[71
]}

Asryan, Andzhey ^{[131
]}

Augustinus, Andre ^{[47
]}

Averbeck, Ralf Peter ^{[108
,109
]}

Awes, Terry ^{[95
]}

Aysto, Juha Heikki ^{[55
,56
]}

Azmi, Mohd Danish ^{[21
,100
,101
]}

机构：

[1] AI Alikhanyan Natl Sci Lab Yerevan Phys Inst Fdn, 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] IN2P3, Ctr Calcul, Villeurbanne, France

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

[11] Ctr Invest Energet Medioambient & Tecnol CIEMAT, Madrid, Spain

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

[13] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Mexico

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

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

[16] Chicago State Univ, Chicago, IL USA

[17] IRFU, CEA, Saclay, France

[18] CIIT Ctr Hlth Res, Islamabad, Pakistan

[19] Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela, Spain

[20] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain

[21] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India

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

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

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

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

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

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

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

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

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

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

[32] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

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

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

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

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

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

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

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

[40] Univ Salerno, Dipartimento Fis ER Caianiello, I-84100 Salerno, Italy

[41] Ist Nazl Fis Nucl, Grp Collegato, Salerno, Italy

[42] Univ Piemonte Orientate, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy

[43] Ist Nazl Fis Nucl, Grp Collegato, Alessandria, Italy

[44] Dipartimento Interateneo Fis M Merlin, Bari, Italy

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

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

[47] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland

[48] Fachhsch Koln, Cologne, Germany

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

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

来源：

PHYSICS LETTERS B | 2013年 / 719卷 / 1-3期

基金：

英国科学技术设施理事会; 中国国家自然科学基金; 新加坡国家研究基金会; 欧洲研究理事会; 美国国家科学基金会; 美国能源部; 芬兰科学院; 巴西圣保罗研究基金会; 瑞典研究理事会;

关键词：

PROTON-PROTON COLLISIONS; TRIANGULAR FLOW;

D O I：

10.1016/j.physletb.2013.01.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < P-T,P-assoc < P-T,P-trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS Collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and p(T) bins, and the widths show no significant evolution with event multiplicity or p(T). These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：29 / 41

页数：13

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