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| Book/Report/Dissertation / PhD Thesis | PUBDB-2016-05873 |
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2016
Verlag Deutsches Elektronen-Synchrotron
Hamburg
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Please use a persistent id in citations: doi:10.3204/PUBDB-2016-05873
Report No.: DESY-THESIS-2016-033
Abstract: The Compact Muon Solenoid (CMS) detector is one of two multi-purpose detectors located underground in the Large Hadron Collider (LHC) tunnel at CERN in Geneva. In this thesis, a search for a heavy Higgs boson decaying to two light Higgs is presented.The search is performed on proton-proton collision data with an integrated luminosity of 2:30 fb$^{-1}$ and a centre-of-mass energy of 13 TeV recorded by the CMS detector in 2015. To increase the sensitivity of the analysis, a kinematic tting tool (HHKinFit)tailored to the needs of the analysis is developed. It was first used in the analysis of8TeV data [1] and was more recently used in an 13 TeV analysis [2]. Since then, further improvements to the HHKinFit have been implemented. The analysis presented in this thesis will mark the first use of the HHKinFit fit probability to further increase the sensitivity of the analysis. As no excess is observed, exclusion limits on the cross-section times branching ratio of the signal are set and interpreted in the post-Higgs MinimalSupersymmetric Standard Model (hMSSM) and the non-alignment Two Higgs DoubletModel (2HDM).
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