CHIRAL SYMMETRY-BREAKING IN THE BOUND-STATE HYPERON MODEL

被引：50

作者：

RISKA, DO ^{[1
]}

SCOCCOLA, NN ^{[1
]}

机构：

[1] NIELS BOHR INST,DK-2100 COPENHAGEN 0,DENMARK

来源：

PHYSICS LETTERS B | 1991年 / 265卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(91)90038-R

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that the effective binding of the flavoured meson in the bound state model for the hyperons is significantly reduced if the chiral symmetry breaking term in the lagrangian density is modified so that the empirical fact that f(D)>f(K)>f-pi is consistently taken into account. This solution of the overbinding problem of the mesons immediately leads to quantitatively satisfactory predictions of the spectra of both the strange and charmed hyperons.

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页码：188 / 191

页数：4

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