Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings

被引：178
|
作者：
Hyodo, T [1 ]
Nam, SI
Jido, D
Hosaka, A
机构：
[1] Res Ctr Nucl Phys, Osaka 5670047, Japan
[2] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea
来源：
PHYSICAL REVIEW C | 2003年 / 68卷 / 01期
关键词：
D O I：
10.1103/PhysRevC.68.018201
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We examine flavor SU(3) breaking effects on meson-baryon scattering amplitudes in the chiral unitary model. It turns out that the SU(3) breaking, which appears in the leading quark mass term in the chiral expansion, cannot explain the channel dependence of the subtraction parameters of the model, which are crucial for reproducing the observed scattering amplitudes and resonance properties.
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页数：4
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