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. I will focus on the real Higgs singlet extension of the Standard model where di-Higgs production is enhanced by resonant decays of an additional heavy scalar into two SM-like Higgs bosons. The study focuses on the effect of the interference between non-resonant and resonant diagrams and finds this to have a non-negligible effect on the cross-sections and differential distributions at the LHC. I will also present a new tool utilizing a matrix-element reweighting method allowing interference effects to be modelled in a computationally efficient way.
Author
Daniel Winterbottom
(Imperial College (GB))
Co-authors
Elina Fuchs
(Leibniz Universitaet Hannover (DE))
Mr
Finn Feuerstake
(Leibniz Universitaet Hannover (DE))
Tania Natalie Robens
(Rudjer Boskovic Institute (HR))
