Disentangling flow and signals of Chiral Magnetic Effect in U plus U, Au plus Au and p plus Au collisions

被引：15

作者：

Tribedy, Prithwish ^{[1
]}

Adamczyk, L. ^{[2
]}

Adkins, J. K. ^{[21
]}

Agakishiev, G. ^{[19
]}

Aggarwal, M. M. ^{[33
]}

Ahammed, Z. ^{[50
]}

Alekseev, I. ^{[17
]}

Aparin, A. ^{[19
]}

Arkhipkin, D. ^{[4
]}

Aschenauer, E. C. ^{[4
]}

Ashraf, M. U. ^{[47
]}

Attri, A. ^{[33
]}

Averichev, G. S. ^{[19
]}

Bai, X. ^{[8
]}

Bairathi, V. ^{[29
]}

Bellwied, R. ^{[46
]}

Bhasin, A. ^{[18
]}

Bhati, A. K. ^{[33
]}

Bhattarai, P. ^{[45
]}

Bielcik, J. ^{[11
]}

Bielcikova, J. ^{[12
]}

Bland, L. C. ^{[4
]}

Bordyuzhin, I. G. ^{[17
]}

Bouchet, J. ^{[20
]}

Brandenburg, J. D. ^{[38
]}

Brandin, A. V. ^{[28
]}

Bunzarov, I. ^{[19
]}

Butterworth, J. ^{[38
]}

Caines, H. ^{[54
]}

Sanchez, M. Calderon de la Barca ^{[6
]}

Campbell, J. M. ^{[31
]}

Cebra, D. ^{[6
]}

Chakaberia, I. ^{[4
]}

Chaloupka, P. ^{[11
]}

Chang, Z. ^{[44
]}

Chatterjee, A. ^{[50
]}

Chattopadhyay, S. ^{[50
]}

Chen, X. ^{[23
]}

Chen, J. H. ^{[41
]}

Cheng, J. ^{[47
]}

Cherney, M. ^{[10
]}

Christie, W. ^{[4
]}

Contin, G. ^{[24
]}

Crawford, H. J. ^{[5
]}

Das, S. ^{[14
]}

De Silva, L. C. ^{[10
]}

Debbe, R. R. ^{[4
]}

Dedovich, T. G. ^{[19
]}

Deng, J. ^{[40
]}

Derevschikov, A. A. ^{[35
]}

机构：

[1] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA

[2] AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Brookhaven Natl Lab, Upton, NY 11973 USA

[5] Univ Calif Berkeley, Berkeley, CA 94720 USA

[6] Univ Calif Davis, Davis, CA 95616 USA

[7] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[8] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China

[9] Univ Illinois, Chicago, IL 60607 USA

[10] Creighton Univ, Omaha, NE 68178 USA

[11] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic

[12] Nucl Phys Inst AS CR, Prague 25068, Czech Republic

[13] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[14] Inst Phys, Bhubaneswar 751005, Orissa, India

[15] Indian Inst Technol, Mumbai 400076, Maharashtra, India

[16] Indiana Univ, Bloomington, IN 47408 USA

[17] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia

[18] Univ Jammu, Jammu 180001, India

[19] Joint Inst Nucl Res, Dubna 141980, Russia

[20] Kent State Univ, Kent, OH 44242 USA

[21] Univ Kentucky, Lexington, KY 40506 USA

[22] Korea Inst Sci & Technol Informat, Daejeon 305701, South Korea

[23] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

[24] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[25] Lehigh Univ, Bethlehem, PA 18015 USA

[26] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[27] Michigan State Univ, E Lansing, MI 48824 USA

[28] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[29] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India

[30] Natl Cheng Kung Univ, Tainan 70101, Taiwan

[31] Ohio State Univ, Columbus, OH 43210 USA

[32] Inst Nucl Phys PAN, PL-31342 Krakow, Poland

[33] Panjab Univ, Chandigarh 160014, India

[34] Penn State Univ, University Pk, PA 16802 USA

[35] Inst High Energy Phys, Protvino 142281, Russia

[36] Purdue Univ, W Lafayette, IN 47907 USA

[37] Pusan Natl Univ, Pusan 46241, South Korea

[38] Rice Univ, Houston, TX 77251 USA

[39] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[40] Shandong Univ, Jinan 250100, Shandong, Peoples R China

[41] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[42] SUNY Stony Brook, New York, NY USA

[43] Temple Univ, Philadelphia, PA 19122 USA

[44] Texas A&M Univ, College Stn, TX 77843 USA

[45] Univ Texas Austin, Austin, TX 78712 USA

[46] Univ Houston, Houston, TX 77204 USA

[47] Tsinghua Univ, Beijing 100084, Peoples R China

[48] US Naval Acad, Annapolis, MD 21402 USA

[49] Valparaiso Univ, Valparaiso, IN 46383 USA

[50] Variable Energy Cyclotron Ctr, Kolkata 700064, India

来源：

NUCLEAR PHYSICS A | 2017年 / 967卷

关键词：

CME; Three-particle correlations; A plus A and p plus A collisions; HEAVY-ION COLLISIONS; PARITY VIOLATION; HOT QCD;

D O I：

10.1016/j.nuclphysa.2017.05.078

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 present STAR measurements of the charge-dependent three-particle correlator gamma(a,b) = < cos(phi(a)(1) + phi(b)(2)-2 phi(3))>/v(2){2} and elliptic flow v(2){2} in U+U, Au+Au and p+Au collisions at RHIC. The difference Delta gamma = gamma(opposite sign)-gamma(same sign) measures charge separation across the reaction plane, a predicted signal of the Chiral Magnetic Effect (CME). Although charge separation has been observed, it has been argued that the measured separation can also be explained by elliptic flow related backgrounds. In order to separate the two effects we perform measurements of the gamma-correlator where background expectations differ from magnetic field driven effects. A differential measurement of gamma with the relative pseudorapidity (Delta eta)) between the first and second particles indicate that Delta gamma in peripheral A+A and p+A collisions are dominated by short-range correlations in A. However, a relatively wider component of the correlation in Delta eta tends to vanish the same way as projected magnetic field as predicted by MC-Glauber simulations.

引用

页码：740 / 743

页数：4

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