Search for the chiral magnetic effect at the LHC with the CMS experiment

被引：3

作者：

Tu, Zhoudunming ^{[1
]}

Sirunyan, A. M. ^{[2
]}

Tumasyan, A. ^{[2
]}

Adam, W. ^{[3
]}

Ambrogi, F. ^{[3
]}

Asilar, E. ^{[3
]}

Bergauer, T. ^{[3
]}

Brandstetter, J. ^{[3
]}

Dragicevic, M. ^{[3
]}

Eroe, J. ^{[3
]}

Del Valle, A. Escalante ^{[3
]}

Flechl, M. ^{[3
]}

Fruehwirth, R. ^{[3
,205
]}

Ghete, V. M. ^{[3
]}

Hrubec, J. ^{[3
]}

Jeitler, M. ^{[3
,205
]}

Krammer, N. ^{[3
]}

Kraetschmer, I. ^{[3
]}

Liko, D. ^{[3
]}

Madlener, T. ^{[3
]}

Mikulec, I. ^{[3
]}

Rad, N. ^{[3
]}

Rohringer, H. ^{[3
]}

Schieck, J. ^{[3
,205
]}

Schoefbeck, R. ^{[3
]}

Spanring, M. ^{[3
]}

Spitzbart, D. ^{[3
]}

Taurok, A. ^{[3
]}

Waltenberger, W. ^{[3
]}

Wittmann, J. ^{[3
]}

Wulz, C. -E. ^{[3
,205
]}

Zarucki, M. ^{[3
]}

Chekhovsky, V. ^{[4
]}

Mossolov, V. ^{[4
]}

Suarez Gonzalez, J. ^{[4
]}

De Wolf, E. A. ^{[5
]}

Di Croce, D. ^{[5
]}

Janssen, X. ^{[5
]}

Lauwers, J. ^{[5
]}

Pieters, M. ^{[5
]}

Van de Klundert, M. ^{[5
]}

Van Haevermaet, H. ^{[5
]}

Van Mechelen, P. ^{[5
]}

Van Remortel, N. ^{[5
]}

Abu Zeid, S. ^{[6
]}

Blekman, F. ^{[6
]}

D'Hondt, J. ^{[6
]}

De Bruyn, I. ^{[6
]}

De Clercq, J. ^{[6
]}

Deroover, K. ^{[6
]}

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77002 USA

[2] Yerevan Phys Inst, Yerevan, Armenia

[3] Inst Hochenergiephys, Vienna, Austria

[4] Inst Nucl Problems, Minsk, BELARUS

[5] Univ Antwerp, Antwerp, Belgium

[6] Vrije Univ Brussel, Brussels, Belgium

[7] Univ Libre Bruxelles, Brussels, Belgium

[8] Univ Ghent, Ghent, Belgium

[9] Catholic Univ Louvain, Louvain Le Neuve, Belgium

[10] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[11] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[12] Univ Estadual Paulista, Sao Paulo, Brazil

[13] Univ Fed ABC, Sao Paulo, Brazil

[14] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[15] Univ Sofia, Sofia, Bulgaria

[16] Beihang Univ, Beijing, Peoples R China

[17] Inst High Energy Phys, Beijing, Peoples R China

[18] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[19] Tsinghua Univ, Beijing, Peoples R China

[20] Univ Los Andes, Bogota, Colombia

[21] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[22] Univ Split, Fac Sci, Split, Croatia

[23] Inst Rudjer Boskovic, Zagreb, Croatia

[24] Univ Cyprus, Nicosia, Cyprus

[25] Charles Univ Prague, Prague, Czech Republic

[26] Escuela Politec Nacl, Quito, Ecuador

[27] Univ San Francisco Quito, Quito, Ecuador

[28] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt

[29] NICPB, Tallinn, Estonia

[30] Univ Helsinki, Dept Phys, Helsinki, Finland

[31] Helsinki Inst Phys, Helsinki, Finland

[32] Lappeenranta Univ Technol, Lappeenranta, Finland

[33] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France

[34] Univ Paris Saclay, CNRS, Ecole Polytech, Lab Leprince Ringuet,IN2P3, Palaiseau, France

[35] Univ Strasbourg, CNRS, IPHC, UMR 7178, Strasbourg, France

[36] CNRS, Inst Natl Phys Nucl & Phys Particules, IN2P3, Ctr Calcul, Villeurbanne, France

[37] Univ Claude Bernard Lyon 1, Univ Lyon, CNRS, Inst Phys Nucl Lyon,IN2P3, Villeurbanne, France

[38] Georgian Tech Univ, Tbilisi, Georgia

[39] Tbilisi State Univ, Tbilisi, Georgia

[40] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[41] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[42] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[43] DESY, Hamburg, Germany

[44] Univ Hamburg, Hamburg, Germany

[45] Karlsruher Inst Technol, Karlsruhe, Germany

[46] NCSR Demokritos, INPP, Aghia Paraskevi, Greece

[47] Natl & Kapodistrian Univ Athens, Athens, Greece

[48] Natl Tech Univ Athens, Athens, Greece

[49] Univ Ioannina, Ioannina, Greece

[50] Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Budapest, Hungary

来源：

NUCLEAR PHYSICS A | 2019年 / 982卷

关键词：

CME; Small Systems; Particle Correlation; Event Shape Engineering; COLLISIONS; FIELD;

D O I：

10.1016/j.nuclphysa.2018.08.032

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：

Searches for the chiral magnetic effect (CME) using charge-dependent azimuthal correlations with respect to event planes are presented in PbPb collisions at 5.02 TeV and pPb collisions at 5.02 and 8.16 TeV, with the CMS experiment at the LHC. The azimuthal correlations with respect to the second- and third-order event planes are explored as a function of pseudorapidity, transverse momentum, and event multiplicity, which provides new insights into the underlying background correlations. By employing an event-shape engineering technique, a linear dependence of charge-dependent correlations on the second-order anisotropy flow (nu(2)) is observed, and the upper limits on the nu(2)-independent fraction, which is directly related to the CME signal, are obtained at 95% confidence level for both pPb and PbPb collisions. These results provide strong constraints on the search for the chiral magnetic effect at LHC energies, and establish new guidelines for searches in future experiments.

引用

页码：527 / 530

页数：4

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