QED中电子(g-2)在$\alpha^3$阶的解析值
高能物理 - 唯象学
2009-10-28 v1
摘要
我们以闭合解析形式计算了QED中三阶非平面“三交叉”图对电子(g-2)的贡献;其值(省略已包含的红外发散项)为 ae(3−cross)=1/2π2Z(3)−55/12Z(5)−16/135π4+32/3(a4+1/24ln(2)4)+14/9π2ln(2)2−1/3Z(3)+23/3π2ln(2)−47/9π2−239/2160。这完成了(g-2)在α3阶的解析计算,得到 ae(3−loop)=(α/π)3{83/72π2Z(3)−55/24Z(5)+100/3[(a4+1/24ln(2)4)−1/24π2ln(2)2]−239/2160π4+139/18Z(3)−298/9π2ln(2)+17101/810π2+28259/5184}=(α/π)3(1.181241456...)。
引用
@article{arxiv.hep-ph/9602417,
title = {The analytical value of the electron (g-2) at order alpha^3 in QED},
author = {S. Laporta and E. Remiddi},
journal= {arXiv preprint arXiv:hep-ph/9602417},
year = {2009}
}
备注
plain TeX, 16 pages, 2 figures. Submitted to Physics Letters B. Two postscript files (z2.ps, zx1gen.ps) are included