3–7 Apr 2017
University of Birmingham
Europe/London timezone

Large electroweak corrections to vector-boson scattering at the LHC

6 Apr 2017, 12:07
15m
West Building Lecture Theatre

West Building Lecture Theatre

WG4) Hadronic and Electroweak Observables WG4 Hadronic and Electroweak Observables

Speaker

Mathieu Pellen (University Wuerzburg)

Description

Vector-boson scattering is a key process to investigate the mechanism of electroweak symmetry breaking at the LHC.
For the first time full NLO electroweak corrections to off-shell vector-boson scattering are presented.
The computation features the complete matrix elements, including all non-resonant and off-shell contributions, to the electroweak process pp → μ + ν μ e + ν e jj.
It is fully differential, and event selections are applied to the final states such that the predictions can be directly compared to experimental measurements.
The corrections are surprisingly large, reaching -16% for the fiducial cross section and up to -40% in the tails of distributions.
These large corrections are due to enhanced logarithms in the bosonic virtual corrections.
The methods used and some exemplary results will be presented.

Primary author

Mathieu Pellen (University Wuerzburg)

Co-authors

Ansgar Denner Benedikt Biedermann (Universität Würzburg)

Presentation materials