Speaker
Steven Paasch
(FLC (FTX Fachgruppe SLB))
Description
Using a CMS measurement of four top (𝑡𝑡¯𝑡𝑡¯) production in proton-proton collisions we constrain the parameter space of BSM scalar models. We study these effects for models with a generic scalar X with couplings to W-bosons and to top-quarks. We use Monte-Carlo simulators and fast detector simulations to recast the CMS analysis in order to obtain upper limits on the cross section times branching fraction for the production modes 𝑝𝑝→(𝑡𝑡¯,𝑡𝑊,𝑡)+𝑋 with 𝑋→𝑡𝑡¯, where 𝑋 is a new heavy Higgs 𝐻, a pseudoscalar 𝐴 or mixed CP-state. Furthermore we study the impact on Two-Higgs-Doublet models where four top production places constraints on the low 𝑡𝑎𝑛𝛽 region which is of special interest for Baryogenesis.
Primary authors
Dr
Henning Bahl
Steven Paasch
(FLC (FTX Fachgruppe SLB))
