Persons and affiliations

Date

Description

Kinematic Studies in the Search for a Low-Mass CP-Odd Higgs Boson for Mass Hypotheses in the Range from 20 GeV to 80 GeV

The Two-Higgs- Doublet Model (2HDM) attempts to resolve the derivations
between the experimental and theoretical value of the anomalous magnetic momentum of the muon. Since this theory predicts the existence of multiple Higgs bosons, discovering one of them would strongly hint towards this theory being correct. This thesis is focused on the search for a low-mass CP-odd Higgs boson (A boson), which was predicted by the 2HDM for mass hypotheses in the range between 20 GeV and 80 GeV. The goal is to present multiple cuts that improve the significance of the A boson signal and therefore its upper limit. This cut optimization was done with masses calculated by a collinear mass approximation (COLL) as well as with the Missing Mass Calculator (MMC). It is based on the work and help of the working group for experimental particle physics at the IKTP at TU Dresden, who carried out the search for the A boson.