Charge-dependent flow and the search for the chiral magnetic wave in Pb-Pb collisions at √SNN=2.76 TeV

被引：41

作者：

Adam, J. ^{[52
]}

Adamova, D. ^{[96
]}

Aggarwal, M. M. ^{[100
]}

Rinella, G. Aglieri ^{[48
]}

Agnello, M. ^{[33
]}

Agrawal, N. ^{[60
]}

Ahammed, Z. ^{[137
]}

Ahn, S. U. ^{[80
]}

Aiola, S. ^{[141
,144
]}

Akindinov, A. ^{[70
,133
]}

Alam, S. N. ^{[137
]}

Aleksandrov, D. ^{[92
]}

Alessandro, B. ^{[33
]}

Alexandre, D. ^{[114
]}

Alfaro Molina, R. ^{[76
]}

Alici, A. ^{[14
,35
]}

Alkin, A. ^{[3
]}

Almaraz, J. R. M. ^{[124
]}

Alme, J. ^{[50
]}

Alt, T. ^{[55
]}

Altinpinar, S. ^{[21
]}

Altsybeev, I. ^{[136
]}

Prado, C. Alves Garcia ^{[125
]}

Andrei, C. ^{[90
]}

Andronic, A. ^{[109
,110
]}

Anguelov, V. ^{[106
]}

Anielski, J. ^{[66
]}

Anticic, T. ^{[111
]}

Antinori, F. ^{[39
]}

Antonioli, P. ^{[35
]}

Aphecetche, L. ^{[118
]}

Appelshaeuser, H. ^{[65
]}

Arcelli, S. ^{[34
,35
]}

Arnaldi, R. ^{[33
]}

Arnold, O. W. ^{[49
,105
]}

Arsene, I. C.

Arslandok, M. ^{[65
]}

Audurier, B. ^{[118
]}

Augustinus, A. ^{[48
]}

Averbeck, R. ^{[109
,110
]}

Azmi, M. D. ^{[22
]}

Badala, A. ^{[37
]}

Baek, Y. W. ^{[79
]}

Bagnasco, S. ^{[33
]}

Bailhache, R. ^{[65
]}

Bala, R. ^{[103
]}

Balasubramanian, S. ^{[141
]}

Baldisseri, A. ^{[17
]}

Baral, R. C. ^{[73
]}

Barbano, A. M. ^{[32
,33
]}

机构：

[1] Yerevan Phys Inst, AI Alikhanyan Natl Sci Lab 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, Russia

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

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

[9] IN2P3, Ctr Calcul, Villeurbanne, France

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

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

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

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

[14] Museo Stor Fis & Ctr & Ric Enr Fermi, Ctr Fermi, Rome, Italy

[15] Chicago State Univ, Chicago, IL USA

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

[17] IRFU, Commissariat Energie Atom, 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] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[22] Aligarh Muslim Univ, Dept Phys, Aligarh, 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] Politecn Bari, Dipartimento Elettrotecn Elettron, Bari, Italy

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

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

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

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

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

[36] Univ Catania, Dipartimento Fis Astron, Catania, Italy

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

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

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

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

[41] INFN, Grp Coll, Salerno, Italy

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

[43] INFN, Grp Coll, 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] Eberhard Karls Univ Tubingen, Tubingen, Germany

[48] European Org Nucl Res CERN, Geneva, Switzerland

[49] Tech Univ Munich, Excellence Cluster Universe, Munich, Germany

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

来源：

PHYSICAL REVIEW C | 2016年 / 93卷 / 04期

基金：

俄罗斯基础研究基金会; 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; 日本学术振兴会; 芬兰科学院; 新加坡国家研究基金会; 瑞典研究理事会; 美国能源部; 英国科学技术设施理事会; 欧洲研究理事会;

关键词：

PARITY CONSERVATION; ELLIPTIC FLOW; FIELD; VIOLATION; MOMENT;

D O I：

10.1103/PhysRevC.93.044903

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We report on measurements of a charge-dependent flow using a novel three-particle correlator with ALICE in Pb-Pb collisions at the CERN Large Hadron Collider (LHC), and discuss the implications for observation of local parity violation and the chiral magnetic wave (CMW) in heavy-ion collisions. Charge-dependent flow is reported for different collision centralities as a function of the event charge asymmetry. While our results are in qualitative agreement with expectations based on the CMW, the nonzero signal observed in higher harmonics correlations indicates a possible significant background contribution. We also present results on a differential correlator, where the flow of positive and negative charges is reported as a function of the mean charge of the particles and their pseudorapidity separation. We argue that this differential correlator is better suited to distinguish the differences in positive and negative charges expected due to the CMW and the background effects, such as local charge conservation coupled with strong radial and anisotropic flow.

引用

页数：14

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