CONSISTENT TREATMENT OF THE BOSONIZED NAMBU-JONA-LASINIO MODEL

被引：46

作者：

BERNARD, V

OSIPOV, AA

MEISSNER, UG

机构：

[1] UNIV LOUIS PASTEUR,F-67037 STRASBOURG 2,FRANCE

[2] UNIV BERN,INST THEORET PHYS,CH-3012 BERN,SWITZERLAND

[3] JOINT INST NUCL RES,NUCL PROBLEMS LAB,DUBNA 141980,USSR

来源：

PHYSICS LETTERS B | 1992年 / 285卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)91309-W

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We suggest a systematic method for evaluating any mesonic N-point function in the bosonized Nambu-Jona-Lasinio model. We introduce a transformation of the bosonic fields which allows to develop the Hartree-Fock method in the framework of the bosonized NJL model. We obtain the usual picture of one-loop quark graphs with the external meson legs. However, the meson-quark couplings are momentum-dependent and the finite pieces of the quark loop integrals can be calculated exactly and in harmony with the low-energy theorems of current algebra. As an example, the pi-pi-scattering amplitude is considered,

引用

页码：119 / 125

页数：7

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