4–8 Nov 2024
Uppsala University Main Building
Europe/Stockholm timezone

Higgs decay to llZ at one loop in the SMEFT

6 Nov 2024, 14:10
20m
Uppsala University Main Building

Uppsala University Main Building

Biskopsgatan 3 75310 Uppsala Sweden
Precision Higgs measurements and calculations Common session: precision & BSM 1 - sal IX

Speaker

Matthew Forslund

Description

The Higgs decay into four leptons remains one of the best measured decay modes of the Higgs at the LHC, making precision calculations necessary for accurate predictions and constraints. We present the first calculation of the decay width for H to llZ at full one-loop in the Standard Model Effective Field Theory. At one-loop, a variety of new coefficients appear that modify the total rate and differential distributions, and coefficients appearing at tree-level experience sizable corrections. We show the impact of some select coefficients on the differential and inclusive partial decay width and discuss the reach for BSM physics at the LHC.

Primary track BSM Higgs physics
Is the speaker a PhD student or post-doc? Yes - My participation will be fully supported by my research group

Author

Presentation materials