3 papers
hep-ph2019
Two-loop non-planar master integrals for top-pair production in the quark-annihilation channel
Matteo Becchetti, Roberto Bonciani, Valerio Casconi +3
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…
hep-th2019
Three-loop contributions to the parameter and iterated integrals of modular forms
Samuel Abreu, Matteo Becchetti, Claude Duhr +1
We compute fully analytic results for the three-loop diagrams involving two different massive quark flavours contributing to the parameter in the Standard Model. We find that t…
hep-ph2019
Master Integrals for the two-loop, non-planar QCD corrections to top-quark pair production in the quark-annihilation channel
Matteo Becchetti, Roberto Bonciani, Valerio Casconi +3
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 i…