Large Nc behavior of light resonances in meson-meson scattering

被引：0

作者：

Peláez, JR ^{[1
]}

机构：

[1] Univ Complutense, Dept Fis Teor 2, E-28040 Madrid, Spain

来源：

HADRON SPECTROSCOPY | 2004年 / 717卷

关键词：

D O I：

暂无

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：

By scaling the parameters of meson-meson unitarized Chiral Perturbation Theory amplitudes according to the QCD large N-0 rules, one can study the spectroscopic nature of light meson resonances. The scalars sigma, kappa f(0)(980) and, possibly, the a(0)(980) do not seem to behave as $(q) over bar $q states, in contrast to the vectors p(770) and K*(892). The behavior shown by the scalars is naturally explained in terms of diagrams with intermediate $(q) over bar $$(q) over bar $ qq-like states. Here we review our recent study and show how the results do not depend on the different fits to data.

引用

页码：89 / 93

页数：5

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