Two-loop non-planar master integrals for top-pair production in the quark-annihilation channel
High Energy Physics - Phenomenology
2019-12-13 v1
Abstract
We present the analytic computation of the master integrals associated to certain two-loop non-planar topologies, which are needed to complete the evaluation of the last two color coefficients for the top-pair production in the quark-annihilation channel, which are not yet known analytically. The master integrals have been computed exploiting the differential equations method in canonical form. The solution is given as a series expansion in the dimensional regularization parameter through to weight four, the expansion coefficients are given in terms of multiple polylogarithms.
Keywords
Cite
@article{arxiv.1912.06006,
title = {Two-loop non-planar master integrals for top-pair production in the quark-annihilation channel},
author = {Matteo Becchetti and Roberto Bonciani and Valerio Casconi and Andrea Ferroglia and Simone Lavacca and Andreas von Manteuffel},
journal= {arXiv preprint arXiv:1912.06006},
year = {2019}
}
Comments
11 pages, 2 figures, talk given at RADCOR2019, based on arXiv:1904.10834