Speaker
Ramona Groeber
(Università di Padova e INFN, Sezione di Padova)
Description
I will show how expansion methods can be used to analytically evaluate multi-scale gluon fusion processes at two-loop order. In particular, an expansion for small transverse momentum covers most of the phase space for the gg-> ZZ, gg-> HZ and gg-> HH processes. When combined with a high-energy expansion the whole phase space is covered. Since this approach allows to express the amplitudes analytically, the results can be easily implemented into flexible Monte Carlo codes.
Primary author
Ramona Groeber
(Università di Padova e INFN, Sezione di Padova)
