Three-body resonances in two-meson-one-baryon systems

被引：101

作者：

Martinez Torres, A. ^{[1
]}

Khemchandani, K. P.

Oset, E.

机构：

[1] Univ Valencia, CSIC, Dept Fis Teor, Inst Invest Paterna, E-46071 Valencia, Spain

来源：

PHYSICAL REVIEW C | 2008年 / 77卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.77.042203

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 report four Sigma's and three Lambda's, in the 1500-1800 MeV region, as two meson-one baryon S-wave (1/2)(+) resonances. We solve Faddeev equations in the coupled channel approach. The invariant mass of one of the meson-baryon pairs and that of the three particles have been varied and peaks in the squared three body T-matrix have been found very close to the existing S=-1,J(P)=1/2(+) low lying baryon resonances. The input two-body t-matrices for meson-meson and meson-baryon interaction have been calculated by solving the Bethe-Salpeter equation with the potentials obtained in the chiral unitary approach.

引用

页数：5

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