On the Soliton in the NJL model with the ω Meson

被引：0

作者：

Park, NW ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea

[2] Chonnam Natl Univ, Inst Basic Sci, Kwangju 500757, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2001年 / 38卷 / 06期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the soliton solution in the perturbative treatment of the Eur Euclidean energy functional in the Nambu-Jona-Lasinio model with the omega -meson. The resulting energy functional is the sum of the usual pion energy functional and omega -meson terms up to the second order. The equations of motion involve an inhomogeneous integral equation for the omega -meson and the evaluation of a triple sum over sea quark states for the pion. The dependences of the soliton solutions on the constituent quark mass M are studied. A solution is found M approximate to 390 MeV and thc valence quark energy becomes negative when M is greater than 450 MeV. This solution satisfies all consistent condtions and confirms that the omega meson has a repulsive character. We discuss related problems and the possible analytical solution without the perturbation, which involves a frequency dependent soliton solution.

引用

页码：786 / 790

页数：5

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