A sensitivity study of the primary correlators used to characterize chiral-magnetically-driven charge separation
文献类型：期刊论文
| 作者 | Magdy, N; Nie, MW; Ma, GL; Lacey, RA |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2020 |
| 卷号 | 809页码:- |
| 关键词 | COLLISIONS PARTON FIELD |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2020.135771 |
| 文献子类 | 期刊论文 |
| 英文摘要 | A Multi Phase Transport (AMPT) model is used to study the detection sensitivity of two of the primary correlators - Delta gamma and R-Psi 2 - employed to characterize charge separation induced by the Chiral Magnetic Effect (CME). The study, performed relative to several event planes for different input "CME signals", indicates a detection threshold for the fraction f(CME) = Delta gamma(CME)/Delta gamma, which renders the Delta gamma-correlator insensitive to values of the Fourier dipole coefficient a1( )less than or similar to 2.5%, that is larger than the purported signal (signal difference) for ion-ion(isobaric) collisions. By contrast, the R-Psi 2 correlator indicates concave-shaped distributions with inverse widths (sigma(-1)(R Psi 2)) that are linearly proportional to a(1), and independent of the character of the event plane used for their extraction. The sensitivity of the R-Psi 2 correlator to minimal CME-driven charge separation in the presence of realistic backgrounds, could aid better characterization of the CME in heavy-ion collisions. (C) 2020 The Author(s). Published by Elsevier B.V. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32688]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Illinois, Dept Phys, Chicago, IL 60607 USA 2.Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China 3.Shandong Univ, Key Lab Particle Phys & Particle Irradiat, Minist Educ, Qingdao 266237, Shandong, Peoples R China 4.Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 6.SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA 7.SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA |
| 推荐引用方式 GB/T 7714 | Magdy, N,Nie, MW,Ma, GL,et al. A sensitivity study of the primary correlators used to characterize chiral-magnetically-driven charge separation[J]. PHYSICS LETTERS B,2020,809:-. |
| APA | Magdy, N,Nie, MW,Ma, GL,&Lacey, RA.(2020).A sensitivity study of the primary correlators used to characterize chiral-magnetically-driven charge separation.PHYSICS LETTERS B,809,-. |
| MLA | Magdy, N,et al."A sensitivity study of the primary correlators used to characterize chiral-magnetically-driven charge separation".PHYSICS LETTERS B 809(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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