Parameterization of deformed nuclei for Glauber modeling in relativistic heavy ion collisions

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	Parameterization of deformed nuclei for Glauber modeling in relativistic heavy ion collisions
	Shou, QY; Ma, YG; Sorensen, P; Tang, AH; Videbaek, F; Wang, H
刊名	PHYSICS LETTERS B
	2015
卷号	749 页码:215—220
关键词	INITIAL-STATE SIMULATION QUARK-GLUON PLASMA ELLIPTIC FLOW ELECTRON-SCATTERING COLLABORATION DISTRIBUTIONS PERSPECTIVE ENERGY
ISSN号	0370-2693
通讯作者	Shou, QY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
英文摘要	The density distributions of large nuclei are typically modeled with a Woods-Saxon distribution characterized by a radius R-0 and skin depth a. Deformation parameters beta are then introduced to describe non-spherical nuclei using an expansion in spherical harmonics R-0(1 + beta Y-2(2)0 + beta Y-4(4)0). But when a nucleus is non-spherical, the R-0 and a inferred from electron scattering experiments that integrate over all nuclear orientations cannot be used directly as the parameters in the Woods-Saxon distribution. In addition, the beta(2) values typically derived from the reduced electric quadrupole transition probability B(E2)up arrow are not directly related to the beta(2) values used in the spherical harmonic expansion. B(E2). is more accurately related to the intrinsic quadrupole moment Q(0) than to beta(2). One can however calculate Q(0) for a given beta(2) and then derive B(E2). from Q(0). In this paper we calculate and tabulate the R-0, a, and beta(2) values that when used in a Woods-Saxon distribution, will give results consistent with electron scattering data. We then present calculations of the second and third harmonic participant eccentricity (epsilon(2) and epsilon(3)) with the new and old parameters. We demonstrate that epsilon(3) is particularly sensitive to a and argue that using the incorrect value of a has important implications for the extraction of viscosity to entropy ratio (eta/s) from the QGP created in Heavy Ion collisions. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
语种	英语
WOS记录号	WOS:000361562900030
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/25013]
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	Shou, QY,Ma, YG,Sorensen, P,et al. Parameterization of deformed nuclei for Glauber modeling in relativistic heavy ion collisions[J]. PHYSICS LETTERS B,2015,749:215—220.
APA	Shou, QY,Ma, YG,Sorensen, P,Tang, AH,Videbaek, F,&Wang, H.(2015).Parameterization of deformed nuclei for Glauber modeling in relativistic heavy ion collisions.PHYSICS LETTERS B,749,215—220.
MLA	Shou, QY,et al."Parameterization of deformed nuclei for Glauber modeling in relativistic heavy ion collisions".PHYSICS LETTERS B 749(2015):215—220.