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arXiv · 1912.06006

Two-loop non-planar master integrals for top-pair production in the quark-annihilation channel

Matteo Becchetti·Roberto Bonciani·Valerio Casconi·Andrea Ferroglia·Simone Lavacca·Andreas von Manteuffel
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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.

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Matteo Becchetti, Roberto Bonciani, Valerio Casconi, Andrea Ferroglia, Simone Lavacca, Andreas von Manteuffel. 2019-12-12. Two-loop non-planar master integrals for top-pair production in the quark-annihilation channel. https://arxiv.org/abs/1912.06006

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