Seminars and Journal Clubs

New Physics in Vector Boson Scattering at the LHC

by Juergen Reuter (DESY)

Europe/Brussels
1-3rd floor-E.349 - Seminar room (E.349) (Cyclotron)

1-3rd floor-E.349 - Seminar room (E.349)

Cyclotron

30
Description

Vector boson scattering is the rarest particle physics process that has been observed at the LHC. After the discovery of a light Higgs boson, it was clear that there will not be spectacular signs of new physics in VBS, however, due to the intricate cancellation in the amplitudes it remains a highly sensitive probe for new physics effects. We will describe the parameterization of new physics effects in terms of Effective Field Theory higher-dimensional operators, and discuss the issues from validity and perturbative unitarity that make EFT a tool difficult to handle for VBS. As an alternative method, we present simplified models for new physics comprising all possible (regarding their spin- and isospin quantum numbers) resonances that could couple to the diboson system. We will discuss both longitudinal as well as transversal couplings to new physics.

Your browser is out of date!

Update your browser to view this website correctly. Update my browser now

×