51 citations · 260 across the 19 of their papers we have counts for
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Two-loop form factors for pseudo-scalar quarkonium production and decay
Samuel Abreu, Matteo Becchetti, Claude Duhr +1
We present the analytic expressions for the two-loop form factors for the production or decay of pseudo-scalar quarkonia, in a scheme where the quarks are produced at threshold. We…
Two-loop master integrals for a planar topology contributing to
Simon Badger, Matteo Becchetti, Ekta Chaubey +1
We consider the case of a two-loop five-point pentagon-box integral configuration with one internal massive propagator that contributes to top-quark pair production in association…
Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
Samuel Abreu, Matteo Becchetti, Claude Duhr +1
We compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision nu…
One-loop QCD helicity amplitudes for to
Simon Badger, Matteo Becchetti, Ekta Chaubey +2
We compute helicity amplitudes for the one-loop QCD corrections to top-quark pair production analytically in terms of a set of uniformly transcendental master integrals. We provide…