Scalar Mesons and chiral dynamics

被引：0
|
作者：
Napsuciale, M [1 ]
机构：
[1] Univ Guanajuato, Inst Fis, Leon 37150, Guanajuato, Mexico
来源：
PARTICLES AND FIELDS, PROCEEDINGS | 2002年 / 623卷
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中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We discuss scalar mesons properties on the light of chiral dynamics. Considering them as the chiral partners of pseudo-scalar mesons we propose an explanation to their unusual properties based on non-trivial vacuum effects coming from the interplay between spontaneous breaking of chiral symmetry and the violation of U-A(1) symmetry by instantons. Including vector mesons as external sources we work out predictions for radiative decays of vector mesons and compare some of them with recent experimental results from high luminosity Phi factories.
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页码：131 / 138
页数：8
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