Parameterization of deformed nuclei for Glauber modeling in relativistic heavy ion collisions
Shou, QY; Ma, YG; Sorensen, P; Tang, AH; Videbaek, F; Wang, H; Shou, QY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
2015
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号749页码:215—220
文章类型期刊文献
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
关键词Initial-state Simulation Quark-gluon Plasma Elliptic Flow Electron-scattering Collaboration Distributions Perspective Energy
语种英语
WOS记录号WOS:000361562900030
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25013
专题中科院上海应用物理研究所2011-2018年
通讯作者Shou, QY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
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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.,...&Shou, QY .(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.
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