A CONSISTENT DESCRIPTION OF MOMENTUM-REGULARIZED SOLITONIC SOLUTIONS IN THE NAMBU-JONA-LASINIO MODEL

被引：20

作者：

BLOTZ, A

DORING, F

MEISSNER, T

GOEKE, K

机构：

[1] Institut für Theoretische Physik II, Ruhr-Universität Bochum

来源：

PHYSICS LETTERS B | 1990年 / 251卷 / 02期

关键词：

D O I：

10.1016/0370-2693(90)90928-Y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Nambu-Jona-Lasinio model is solved self-consistently using a semi-bosonized form of the effective action. Solitonic solutions with baryon number B=1 are evaluated and their dependence on the regularization scheme is investigated. To this end a regularization method is suggested in which vacuum and solitonic sector can be treated on equal footing. Sharp and soft O(3)- and O(4)-invariant cutoffs are used and the results are compared with those obtained by proper-time regularization. For physically relevant constituent quark masses solitons with rather similar properties emerge in all the schemes used. Only the Σ-commutator appears to be sensitive to the particular form of regularization. © 1990.

引用

页码：235 / 240

页数：6

共 23 条

[1] CHIRAL SYMMETRY-BREAKING IN COULOMB GAUGE QCD [J].