Speaker
Augustin Vestner
(KIT-ITP)
Description
One of the main goals for the HL-LHC is the measurement of the
trilinear Higgs self-coupling, which can be accessed directly in
processes producing two Higgs bosons simultaneously. Higher order
perturbative corrections to gluon fusion, the dominant production
channel, have a sizable impact on the extracted constraints. In
particular, NLO electroweak corrections distort the differential
crosssections.
The amplitude contains chiral couplings and two-loop integrals with up
to five scales. This talk presents an overview over the calculation of
the full EW corrections at NLO, as well as some preliminary
phenomenological results.
Authors
Augustin Vestner
(KIT-ITP)
Gudrun Heinrich
(KIT)
Marco Bonetti
(Eberhard Karls Universität Tübingen)
Matthias Kerner
(KIT-ITP)
Philipp Rendler
(Institute for Theoretical Physics, Karlsruhe Institute of Technology)
Stephen Jones
(IPPP Durham)
Thomas Stone