# Higgs 2022

Nov 7 – 11, 2022
Pisa
Europe/Rome timezone
There is a live webcast for this event.

## QCD and leading Yukawa corrections to gg->HH

Nov 10, 2022, 6:00 PM
15m
Sala Bianchi (Palazzo della Carovana)

Double Higgs

### Speaker

Hantian Zhang (Karlsruhe Institute of Technology)

### Description

In this talk, I will present a first look at the two-loop electroweak
corrections to Higgs boson pair production in gluon-fusion, which
might have a sizeable impact on the cross section. We have performed an
analytic calculation of the two-loop diagrams contributing
to gg->HH where a virtual Higgs boson is exchanged in the top quark loop.
I will briefly describe our method used to solve massive two-loop box
integrals and then discuss results for the form factors. We show that
precise results can be obtained, even for $p_t \approx 100$ GeV and above.

Type of talk Theory

### Primary authors

Hantian Zhang (Karlsruhe Institute of Technology) Matthias Steinhauser (KIT)