Possible observables for the chiral electric separation effect in Cu plus Au collisions

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Possible observables for the chiral electric separation effect in Cu plus Au collisions
	Ma, GL; Huang, XG
刊名	PHYSICAL REVIEW C
	2015
卷号	91 期号:5 页码:—
关键词	HEAVY-ION COLLISIONS MAGNETIC-FIELD NUCLEAR COLLISIONS VIOLATION PARTON
英文摘要	The quark-gluon plasma (QGP) generated in relativistic heavy-ion collisions could be locally parity-odd. In parity-odd QGP, the electric field may induce a chiral current which is called the chiral electric separation effect (CESE). We propose two possible observables for CESE in Cu + Au collisions: The first one is the correlation zeta(alpha beta) = < cos[2(phi(alpha) + phi(beta) - 2 Psi(RP))]>; the second one is the charge-dependent event-plane angle Psi(q)(2) with q = +/- being charge. Nonzero Delta zeta = zeta(opp) - zeta(same) and Delta Psi = may signal the CESE in Cu + Au collisions. Within a multiphase transport model, we study how the final state interaction affects these observables. We find that the correlation gamma(alpha beta) = < cos(phi(alpha) + phi(beta) - Psi(RP))> is sensitive to the out-of-plane charge separation caused by the chiral magnetic effect and to the in-plane charge separation caused by the in-plane electric field, but it is not sensitive to the CESE. On the other hand, Delta zeta and Delta Psi are sensitive to the CESE. Therefore, we suggest that future experiments measure the above observables in Cu + Au collisions in order to disentangle different chiral and charge separation mechanisms.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24536]
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
推荐引用方式 GB/T 7714	Ma, GL,Huang, XG. Possible observables for the chiral electric separation effect in Cu plus Au collisions[J]. PHYSICAL REVIEW C,2015,91(5):—.
APA	Ma, GL,&Huang, XG.(2015).Possible observables for the chiral electric separation effect in Cu plus Au collisions.PHYSICAL REVIEW C,91(5),—.
MLA	Ma, GL,et al."Possible observables for the chiral electric separation effect in Cu plus Au collisions".PHYSICAL REVIEW C 91.5(2015):—.