Analysis of low-momentum correlations with Cartesian harmonics

被引：38

作者：

Danielewicz, P ^{[1
]}

Pratt, S

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

PHYSICS LETTERS B | 2005年 / 618卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

correlation; interferometry; intensity interferometry; Cartesian harmonics; anisotropic correlation;

D O I：

10.1016/j.physletb.2005.05.019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Exploiting final-state interactions and/or identity interference, analysis of anisotropic correlations of particles at low-relative velocities yields information on the anisotropy of emission sources in heavy-ion reactions. We show that the use of Cartesian surface-spherical harmonics in such analysis allows for a systematic expansion of the correlations in terms of real angular-moment coefficients dependent on relative momentum. The coefficients are directly related to the analogous coefficients for emission sources. We illustrate the analysis with an example of correlations generated by classical Coulomb interaction. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：60 / 67

页数：8

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