Analytical Result for Dimensionally Regularized Massless On-shell Double Box
高能物理 - 唯象学
2009-10-31 v2 高能物理 - 理论
摘要
The dimensionally regularized massless on-shell double box Feynman diagram with powers of propagators equal to one is analytically evaluated for general values of the Mandelstam variables s and t. An explicit result is expressed either in terms of polylogarithms Li_a(-t/s), up to a=4, and generalized polylogarithms S_{a,b}(-t/s), with a=1,2 and b=2, or in terms of these functions depending on the inverse ratio, s/t.
引用
@article{arxiv.hep-ph/9905323,
title = {Analytical Result for Dimensionally Regularized Massless On-shell Double Box},
author = {V. A. Smirnov},
journal= {arXiv preprint arXiv:hep-ph/9905323},
year = {2009}
}
备注
8 pages, LaTeX. An error in eq. (24) corrected (8 replaced by 5), with resulting changes in eqs. (25), (28-30)