In-medium modification of the isovector pion-nucleon amplitude

被引：14
|
作者：
Chanfray, G [1 ]
Ericson, M
Oertel, A
机构：
[1] Inst Phys Nucl, IN2P3, CNRS, F-69622 Villeurbanne, France
[2] Univ Lyon 1, F-69622 Villeurbanne, France
[3] CERN, Div Theory, CH-12111 Geneva, Switzerland
来源：
PHYSICS LETTERS B | 2003年 / 563卷 / 1-2期
关键词：
D O I：
10.1016/S0370-2693(03)00596-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the in-medium modification of the isovector piN amplitude using a non-linear representation of the sigma model but keeping the scalar degree of freedom. We check that our result does not depend on the representation. We discuss the connection with other approaches based on chiral perturbation theory. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：61 / 67
页数：7
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