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

Interference effects in resonant di-Higgs production at the LHC

5 Nov 2024, 16:20
20m
Uppsala University Main Building

Uppsala University Main Building

Biskopsgatan 3 75310 Uppsala Sweden
Higgs boson pairs and Higgs potential (including electroweak phase transitions and connections to cosmology) Higgs boson pairs and Higgs potential 2 - sal IX

Speaker

Daniel Winterbottom (Imperial College (GB))

Description

In this talk, I will present an investigation into finite width and interference effects in di-Higgs production at the LHC, with a particular focus on the real Higgs singlet extension of the Standard Model. This extension enhances di-Higgs production through the resonant decays of an additional heavy scalar into two SM-like Higgs bosons. The study examines the impact of interference between non-resonant and resonant diagrams, revealing that this interference has a significant effect on the cross-sections and differential distributions at the LHC. Additionally, I will introduce a new tool that employs a matrix-element reweighting method, enabling the efficient modeling of interference effects in computational simulations.

Primary track Higgs boson pairs and Higgs potential (including electroweak phase transitions and connections to cosmology)
Is the speaker a PhD student or post-doc? Yes - My participation will be fully supported by my research group

Author

Daniel Winterbottom (Imperial College (GB))

Co-authors

Elina Fuchs (Leibniz Universitaet Hannover (DE)) Mr Finn Feuerstake (Leibniz University Hannover) Tania Natalie Robens (Rudjer Boskovic Institute (HR))

Presentation materials