The classical pion field in a nucleus

被引：2

作者：

Ripka, Georges ^{[1
,2
]}

机构：

[1] ECT, I-38050 Trento, Italy

[2] CEA Saclay, Serv Phys Theor, F-91191 Gif Sur Yvette, France

来源：

NUCLEAR PHYSICS A | 2008年 / 814卷

关键词：

Classical pion field; Single particle energies; Grand spin closed shells; Hedgehog pion field in nuclei;

D O I：

10.1016/j.nuclphysa.2008.10.004

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 self-consistent symmetry arises when the nucleon angular momentum j and the isospin t are coupled to a grand spin G. Closed G shells become sources of a classical pion field with a hedgehog shape. Although the amplitude of the pion field, as measured by the chiral angle, is small, it is found to perturb significantly the energies of the nucleon orbits. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：33 / 47

页数：15

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