HADRONIC RESONANCES FROM CHIRAL SUM-RULES

被引：6
|
作者：
KARTVELISHVILI, V
机构：
[1] High Energy Physics Institute, the Tbilisi State University, Georgia
来源：
PHYSICS LETTERS B | 1992年 / 287卷 / 1-3期
关键词：
D O I：
10.1016/0370-2693(92)91893-E
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The existence of rho and a1 mesons is predicted and their masses and widths correctly estimated, based on four classic sum rules of current algebra and well-known pion parameters: decay constant, mass difference, axial structure-dependent form factor and mean square charge radius. Estimates obtained for the four-quark condensates of dimension six and eight are two to four times larger than expected from the vacuum saturation hypothesis.
引用
收藏
页码：159 / 164
页数：6
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