μg-2中 hadronic light-by-light散射效应的Pseudoscalar极点项
高能物理 - 唯象学
2014-11-17 v3
摘要
Pseudoscalar极点贡献是μg-2中O(\alpha^3)级hadronic light-by-light散射效应的主要来源。我们考虑了从可用实验数据推导的Pseudoscalar-光-光异常顶点中推导的off-shell结构。我们的工作给出改进的估计，为μg-2中总体hadronic light-by-light散射效应提供了-79.2（15.4）×10^{-11}。
引用
@article{arxiv.hep-ph/9708227,
title = {Pseudoscalar pole terms in the hadronic light-by-light scattering contribution to muon $ g - 2 $},
author = {M. Hayakawa and T. Kinoshita},
journal= {arXiv preprint arXiv:hep-ph/9708227},
year = {2014}
}
备注
43 pages, Revtex, four figures, cited values of hadronic vacuum polarization contributions and the references are up-dated, to appear in Phys. Rev. D