η-η'混合的理论确定
高能物理 - 唯象学
2010-01-15 v2
摘要
在手征微扰论的大N_c极限系统框架下,在p^2领头阶得到最优的η-η'混合角约为-27度。在此框架下,通过约20%的高阶修正即可与实验数据吻合。
引用
@article{arxiv.0901.2860,
title = {A theoretical determination of the eta-eta' mixing},
author = {C. Degrande and J. -M. Gerard},
journal= {arXiv preprint arXiv:0901.2860},
year = {2010}
}
备注
12 pages, 2 figures; reference to the two-mixing-angle scheme added, minor corrections; to appear in JHEP