THE SIGMA-]PI-PI DECAY WIDTH IN THE LINEAR SIGMA MODEL

被引：0

作者：

NIELSEN, M ^{[1
]}

DAPROVIDENCIA, J ^{[1
]}

机构：

[1] UNIV COIMBRA,INIC,CTR FIS TEOR,P-3000 COIMBRA,PORTUGAL

来源：

PHYSICS LETTERS B | 1991年 / 271卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(91)91271-V

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a boson expansion that includes appropriate anharmonic terms, the decay width of a scalar-isoscalar meson into two pseudoscalar-isovector meson is calculated. A constrained RPA approach, leading to a discretization of the modes in the quark-antiquark continuum, is incorporated in the model. The technique is applied to the bound state solution as well as to the discretized solution.

引用

页码：21 / 26

页数：6

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