Subleading terms in asymptotic Passarino-Veltman functions
arXiv:0711.1067 · doi:10.1142/S0217751X08039839
Abstract
We write explicit and self-contained asymptotic expressions for the tensorial B, C and D Passarino-Veltman functions. These include quadratic and linear logarithmic terms, as well as subleading constant terms. Only mass-suppressed O(m^2/s) contributions are neglected. We discuss the usefulness of such expressions, particularly for studying one-loop effects in 2-to-2 body processes at high energy.
25 pages, 9 eps figures