Two-loop electroweak corrections at high energies
高能物理 - 唯象学
2008-11-26 v1
摘要
We discuss two-loop leading and angular-dependent next-to-leading logarithmic electroweak virtual corrections to arbitrary processes at energies above the electroweak scale. The relevant Feynman diagrams involving soft-collinear gauge bosons gamma, Z, W, have been evaluated in eikonal approximation. We present results obtained from the analytic evaluation of massive loop integrals. To isolate mass singularities we used the Sudakov method and alternatively the sector decomposition method in the Feynman-parameter representation.
关键词
引用
@article{arxiv.hep-ph/0211196,
title = {Two-loop electroweak corrections at high energies},
author = {Ansgar Denner and Michael Melles and Stefano Pozzorini},
journal= {arXiv preprint arXiv:hep-ph/0211196},
year = {2008}
}
备注
5 pages. Talk presented by S.P. at the International Symposium on Radiative Corrections RADCOR 2002, September 8-13, Kloster Banz, Germany. To appear in the proceedings