Ugo Aglietti

TL;DR: In this article, the electroweak corrections due to light fermions to the production cross section σ(gg! H) and to the partial decay widths (H! γ γ) and ( H! g g) were computed in terms of generalized harmonic polylogarithms.

TL;DR: In this paper, the authors considered the production of a Higgs boson via gluon-fusion and its decay into two photons and computed the NLO virtual QCD corrections to these processes in a general framework in which the coupling of the Higgs particle to the external particles is mediated by a colored fermion and a colored scalar.

TL;DR: In this paper, the master integrals containing 2 and 3 massive propagators entering the planar amplitudes of the 2-loop electroweak form factor were computed in terms of a new class of 1-dimensional harmonic polylogarithms of the variable x = − s / m 2, with e = 2 − D / 2, D the space-time dimension and s the center-of-mass energy squared.

TL;DR: In this paper, the authors derived large-momentum expansions of the master integrals, i.e., expansions for | s |⪢ m 2, which are relevant for the study of infrared properties of the Standard Model.

TL;DR: In this article, the (three) master integrals for the crossed ladder diagram with two exchanged quanta of equal mass are computed and the differential equations obeyed by these integrals are used to generate power series expansions centered around all the singular (plus some regular) points, which are then matched numerically with high accuracy.