Speaker
Lucia Hosekova
Description
Vector-boson fusion processes involving the scattering of vector bosons constitute an irreducible background to Higgs-boson production in association with two jets, as they share the same kinematical characteristics. It is therefore desirable
to obtain accurate theoretical predictions and error estimates for
these background processes with accuracy that goes beyond the leading order.
I show an efficient method for calculating the next-to-leading-order QCD corrections to both resonant and non-resonant contributions to the vector boson fusion processes and present results for a class of processes associated with production of two W+, including the complete set of electroweak leading-order diagrams
for the six-particle final state and quantitatively assessing the size
of the s-channel and interference contributions in VBF kinematics.
The QCD corrections stay below about 10% for all considered
observables, while the residual scale dependence is at the level
of ~1%.
Primary authors
Ansgar Denner
(Bayerische Julius Max. Universitaet Wuerzburg (DE))
Lucia Hosekova
(IFIC Valencia)
Stefan Kallweit
(University of Zurich)
