20–25 Aug 2023
Universität Hamburg
Europe/Berlin timezone

Standard Model Effective-Field Theory in final states with multiple Higgs and gauge bosons

22 Aug 2023, 09:10
20m
Hörsaal B (Historic main building)

Hörsaal B

Historic main building

Edmund-Siemers-Allee 1
Parallel session talk Higgs Physics T09 Higgs Physics

Speaker

Roberto Covarelli (University/INFN of Torino)

Description

We analyse the sensitivity to beyond-the-Standard-Model effects of hadron collider processes involving the interaction of two electroweak and two Higgs bosons, VVHH, with V being either a W or a Z boson.

We examine current experimental results by the CMS collaboration in the context of a dimension-8 extension of the Standard Model in an effective-field-theory formalism. We show that constraints from vector-boson-fusion Higgs pair production on operators that modify the Standard Model VVHH interactions are already comparable with or more stringent than those quoted in the analysis of vector-bosonscattering final states. We study the modifications of such constraints when introducing unitarity bounds, and investigate the potential of new experimental final states, such as ZHH associated production. Finally, we show perspectives for the high-luminosity phase of the LHC.

Collaboration / Activity SMEFT phenomenology

Primary author

Roberto Covarelli (University/INFN of Torino)

Presentation materials