Progress on two-loop non-propagator integrals
高能物理 - 唯象学
2007-05-23 v1
摘要
At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions.
引用
@article{arxiv.hep-ph/0101147,
title = {Progress on two-loop non-propagator integrals},
author = {T. Gehrmann and E. Remiddi},
journal= {arXiv preprint arXiv:hep-ph/0101147},
year = {2007}
}
备注
9 pages, LaTeX, Invited talk at 5th International Symposium on Radiative Corrections (RADCOR-2000), Carmel CA, USA, 11--15 September, 2000