Master Integrals for the two-loop, non-planar QCD corrections to top-quark pair production in the quark-annihilation channel

Authors

Matteo Becchetti, Université Catholique de Louvain
Roberto Bonciani, Sapienza Università di Roma
Valerio Casconi, Sapienza Università di Roma
Andrea Ferroglia, CUNY Graduate CenterFollow
Simone Lavacca, Sapienza Università di Roma
Andreas von Manteuffel, Michigan State University

Document Type

Article

Publication Date

8-13-2019

Abstract

We present the analytic calculation of the Master Integrals for the two-loop, non-planar topologies that enter the calculation of the amplitude for top-quark pair hadroproduction in the quark-annihilation channel. Using the method of differential equations, we expand the integrals in powers of the dimensional regulator ε and determine the expansion coefficients in terms of generalized harmonic polylogarithms of two dimensionless variables through to weight four.

Comments

This article was originally published in the Journal of High Energy Physics, available at DOI:10.1007/JHEP08(2019)071

This work is distributed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).