DETERMINATION OF QUARK MASS RATIOS FROM KL3 DECAY

被引：28

作者：

DOMINGUEZ, CA ^{[1
]}

机构：

[1] TEXAS A&M UNIV,DEPT PHYS,COLLEGE STN,TX 77843

来源：

PHYSICS LETTERS B | 1979年 / 86卷 / 02期

关键词：

D O I：

10.1016/0370-2693(79)90811-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Rigorous bounds on Kl3 spectral functions with up to two substractions are used in order to test the hypothesis mu = 0 Results strongly support an earlier proof, based on a no-subtraction assumption, which shows that the non-renormalization theorem is badly violated if mu= 0. Also, a relation between the Kl3± scalar form factor and the quark mass ratio mu/ms is obtained in the soft pion limit. Predictions from this relation are then discussed and compared with other estimates based on the baryon and meson spectra and the η→3π decay. © 1979.

引用

页码：171 / 174

页数：4

共 44 条

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