pion-核子耦合常数、Goldberger-Treiman 偏差与 $\pi N$ $\sigma$ 项
高能物理 - 唯象学
2007-05-23 v3
摘要
我们首先研究 Goldberger-Treiman 偏差(GTd)。然后我们考察 项,其无量纲比值 。最后,我们通过夸克模型预测 耦合常数,当 GTd 时,。
引用
@article{arxiv.hep-ph/0406009,
title = {Pion nucleon coupling constant, Goldberger-Treiman discrepancy and $\pi N$ $\sigma$ term},
author = {Miroslav Nagy and Michael D. Scadron and Gerald E. Hite},
journal= {arXiv preprint arXiv:hep-ph/0406009},
year = {2007}
}
备注
5 pages, no figures, LaTeX; v2: corrected typo in eq. (6); v3: a discussion concerning chiral perturbation theory, and a co-author added