Speaker
Heribertus Bayu Hartanto
(Cambridge University)
Description
I will present an analytic computation of the two-loop QCD corrections to ud->Wbb for an on-shell W-boson using the leading colour and massless bottom quark approximations. We perform an integration-by-parts reduction of the unpolarised squared matrix element using finite field reconstruction techniques and identify an independent basis of special functions that allows an analytic subtraction of the infrared and ultraviolet poles.
Author
Heribertus Bayu Hartanto
(Cambridge University)
