Top-quark mass effects for associated ZH production via gluon fusion

by Marco Vitti (Roma Tre)

Wednesday 27 Oct 2021, 15:00 → 16:00 Europe/Rome

P4C - PAOLOTTI (Dipartimento di Fisica e Astronomia - Edificio Paolotti)

After the discovery of the Higgs boson, precision physics at the LHC has become a very active field, and different approaches are followed to include higher-order effects in theoretical predictions for Higgs-related processes. In this talk I will discuss the progress towards a better understanding of the QCD corrections for the associated production of a Higgs and a Z boson (pp→ZH), with a focus on the recent calculations of the two-loop virtual corrections to the partonic sub-channel gg→ZH. An improved knowledge of these effects would reduce the theoretical uncertainties that currently affect the measurement of the decay of a Higgs to a pair of bottom quarks.