期刊
PHYSICS LETTERS B
卷 693, 期 2, 页码 122-128出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2010.08.021
关键词
Chiral symmetries; Chiral perturbation theory; Chiral Lagrangians; Meson decay constants
资金
- CAPES (Brazilian Agency)
- Schweizerische Universitatskonferenz SUK/CRUS
- Swiss National Science Foundation
- EU [MRTN-CT-2006-035482]
- Helmholtz Association [VH-VI-231]
The pion decay constant integral(pi) plays a crucial role in many areas of low energy particle physics. Its value may e.g. be deduced from experimental data on leptonic pion decays. Here, we provide comments on several aspects of this evaluation. In particular, we point out that at the present level of experimental accuracy, the value of integral(pi) is sensitive to the value of the pion mass chosen in its chiral expansion. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据