Rare and Exotic Higgs decays at ATLAS and CMS
Pallabi Das (on behalf of the ATLAS, CMS Collaborations)
TL;DR
This paper reviews recent searches for rare and exotic Higgs boson decays at ATLAS and CMS, highlighting advanced techniques and the potential to uncover physics beyond the standard model.
Contribution
It presents new results from Run 2 data using innovative online selection and analysis methods to search for Higgs decays into undetected or exotic final states.
Findings
Constraints on Higgs couplings still permit sizeable exotic decay fractions
Advanced selection techniques improve sensitivity to rare decays
No definitive evidence for exotic decays yet
Abstract
After the Higgs boson discovery in 2012, the experiments at the LHC are continuing to study this particle and look for physics beyond the standard model. Some of the Higgs boson properties, such as the mass, has been measured with sub-percent level accuracy. Yet the present integrated luminosity is still a limiting factor for measuring the Higgs boson self-coupling or the first generation Yukawa couplings. The current constraints on the Higgs boson couplings would still allow for a sizeable branching fraction into undetected final states, which motivates the direct searches for rare and exotic decay modes. This presentation discusses several new results from these searches utilizing advanced online selection methods or analysis techniques with the entire Run 2 data.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Distributed and Parallel Computing Systems · Particle Detector Development and Performance