Two-pion exchange nucleon-nucleon potential - Model independent features

被引：46
作者：
Robilotta, MR [1 ]
daRocha, CA [1 ]
机构：
[1] UNIV WASHINGTON,DEPT PHYS,SEATTLE,WA 98195
来源：
NUCLEAR PHYSICS A | 1997年 / 615卷 / 03期
关键词：
D O I：
10.1016/S0375-9474(97)00031-6
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A chiral pion-nucleon amplitude supplemented by the HJS subthreshold coefficients is used to calculate the the long range part of the two-pion exchange nucleon-nucleon potential. In our expressions the HJS coefficients factor out, allowing a clear identification of the origin of the various contributions. A discussion of the configuration space behaviour of the loop integrals that determine the potential is presented, with emphasis on cancellations associated with chiral symmetry. The profile function for the scalar-isoscalar component of the potential is produced and shown to disagree with those of several semi-phenomenological potentials. (C) 1997 Elsevier Science B.V.
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收藏
页码：391 / 416
页数：26
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