MESON PROPERTIES AT FINITE DENSITY IN AN EXTENDED NAMBU-JONA-LASINIO MODEL

被引：26
|
作者：
HOSAKA, A
机构：
[1] Department of Physics, University of Pennsylvania, Philadelphia
来源：
PHYSICS LETTERS B | 1990年 / 244卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(90)90329-5
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Properties of various mesons such as π, σ, ρ{variant}, a1 and ω at finite density are studied in an extended Nambu-Jona-Lasinio model. The bosonization technique is applied as an alternative convenient method rather than solving the Bethe-Salpeter equations. We recover many of the previous results obtained by Bernard and Meissner. In addition, a possible density dependence of the parameter a is pointed out. © 1990.
引用
收藏
页码：363 / 367
页数：5
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