Two photon decays of scalar mesons in a covariant quark model

被引：1
|
作者：
Fajfer, S
Horvatic, D
Tadic, D
Zganec, S
机构：
[1] Jozef Stefan Inst, Ljubljana 1001, Slovenia
[2] Univ Zagreb, Dept Phys, Zagreb 10000, Croatia
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2000年 / 15卷 / 01期
关键词：
D O I：
10.1142/S0217751X00000045
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：
Two photon decay widths of the J(P) = O+ scalar mesons a(0)(980), f(0)(g80), f(0)(1370) and chi(c0) are calculated in a covariant model which is characterized by the quark-antiquark structure. Previously such models were used to calculate current form factors. Here a different application is tried. A simple version of the model uses adjusted nonrelativistic model parameters with small quark masses. The results seem to prefer nonideal mixing of f(0)(980) and f(0)(1370). The calculated decay rate of chi(c0) agrees with the experimental results.
引用
收藏
页码：65 / 79
页数：15
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