Higgs boson pair production

by Matthias Steinhauser (KIT, Karlsruhe)

Monday 14 Oct 2019, 14:00 → 15:30 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Double Higgs boson production is a promising process to measure the
self coupling of Higgs bosons.  The dominant contribution to the cross
section is given by the gluon fusion channel.  In the talk several
recent higher order results are discussed. Among them are combinations
of exact results and high-energy expansions at next-to-leading order
and large top quark mass expansions at next-to-next-to-leading
order. Furthermore, we discuss the effective coupling of two Higgs
bosons to gluons up to third order in perturbation theory.