Young Scientists Meeting of the CRC TRR 257

ttH production in the Higgs characterisation model at NLO in QCD with full off-shell effects

Jun 10, 2022, 9:30 AM

30m

Physik-Hörsaal Nr.3 (building 30.22 KIT Campus Süd )

talk Young scientists talks

Speaker

Jonathan Hermann (RWTH Aachen University)

Description

In the Standard Model, the Higgs boson is predicted to be a scalar particle. However, a possible admixture of a $\mathcal{C}\mathcal{P}$-odd component has yet to be excluded experimentally.
In this talk, I will present predictions for the associated production of a top-quark pair and a stable Higgs boson $pp\to e^{+}{\nu }_e{\mu }^{-}{\overline{\nu }}_{\mu }b\overline{b}H$ with possible mixing between $\mathcal{C}\mathcal{P}$-even and $\mathcal{C}\mathcal{P}$-odd states at NLO in QCD. I will compare the behaviour of the $\mathcal{C}\mathcal{P}$-even, -odd and -mixed scenarios for the integrated fiducial cross sections and several key differential distributions. In addition, I will show that both NLO corrections and off-shell effects play an important role.

Presentation materials

CRC_YSF22.pdf

CRC_YSF22.pptx