PhenoClub: NNLO computation via Master Integrals: the case of Single Top cross-section at O(α_s^2 )

by Ms Elisa Mariani

Thursday 15 May 2014, 10:30 → 11:30 Europe/Brussels

E/3rd floor-E.361 - Meeting room (E.361) (Marc de Hemptinne (chemin du Cyclotron, 2, Louvain-la-Neuve))

Abstract: In the last decade a powerful technique, commonly known as "Master Integrals", has been developed for multi-loop amplitudes and then extended to the case of a generic fully analytical higher-order calculation, including both virtual and real corrections. I will review this technique by presenting an application to the computation of the NNLO-QCD corrections to massive form factors for Charged-Current DIS, and show how the knowledge of such form factors can be used to obtain an approximate result for the at O(α_s²) inclusive t-channel Single Top cross-section.