Speaker
Mr
Marco Niggetiedt
(RWTH Aachen University)
Description
The impact of the finite top-quark mass on the inclusive Higgs
production cross section at higher perturbative orders has been an open
question for almost three decades. In this talk, I report on the
computation of this effect at NNLO QCD. For the
purely gluonic channel, it amounts to $+0.62\%$ relative to the result
obtained in the HEFT approximation. The formally sub-leading
partonic channels over-compensate this shift, leading to an overall
effect of $-0.26\%$ at a $pp$ collider energy of $13\,\mathrm{TeV}$, and $-0.1\%$
at $8\,\mathrm{TeV}$. This result eliminates one of the main theoretical
uncertainties to inclusive Higgs production cross section at
the LHC.
Primary authors
Dr
Jonas Klappert
(RWTH Aachen University)
Mr
Marco Niggetiedt
(RWTH Aachen University)
Prof.
Michal Czakon
(RWTH Aachen University)
Prof.
Robert Valentin Harlander
(RWTH Aachen University)
