Study of ηK(K)over-bar and η′K(K)over-bar with the fixed center approximation to Faddeev equations

被引：19

作者：

Liang, Weihong ^{[1
,2
,3
]}

Xiao, C. W. ^{[2
,3
]}

Oset, E. ^{[2
,3
]}

机构：

[1] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China

[2] Ctr Mixto Univ Valencia, CSIC, Inst Invest Paterna, Dept Fis Teor, Valencia 46071, Spain

[3] Ctr Mixto Univ Valencia, CSIC, Inst Invest Paterna, IFIC, Valencia 46071, Spain

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 11期

基金：

中国国家自然科学基金;

关键词：

CHIRAL PERTURBATION-THEORY; DYSON-SCHWINGER EQUATIONS; EFFECTIVE FIELD-THEORY; N-N SYSTEM; UNITARY APPROACH; KPI SCATTERING; (K)OVER-BARN INTERACTIONS; NUCLEON INTERACTIONS; MESON RESONANCES; COUPLED-CHANNEL;

D O I：

10.1103/PhysRevD.88.114024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the present work we investigate the three-body systems of eta K (K) over bar and eta'K (K) over bar, by taking the fixed center approximation to Faddeev equations. We find a clear and stable resonance structure around 1490 MeV in the squared eta K (K) over bar scattering amplitude, which is not sensitive to the renormalization parameters. Conversely, we get only an enhancement effect of the threshold in the eta'K (K) over bar amplitude that indicates the difficulty to bind the eta'K (K) over bar system as a consequence of the eta'K interaction being weaker than the eta K one. We associate the eta K (K) over bar state found to the eta(1475).

引用

页数：10

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