Dortmund 2021 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 55: Bosonic and Rare Higgs decays
T 55.5: Vortrag
Mittwoch, 17. März 2021, 17:00–17:15, Te
Di-higgs physics with the CMS experiment in multilepton final states - Motivation and results — •Torben Lange, Tobias Kramer, Oliver Rieger, and Peter Schleper — Institut für Experimentalphysik, Universität Hamburg
With the conclusion of the LHC Run 2 data taking period an unprecidented amount of high energy collision data is now available. The dataset consists of 137 fb−1 recorded by the CMS experiment at a center of mass energy of √s = 13 TeV. This allows for the study of rare processes including the production of two SM higgs bosons either with our without the so far unmeasured trilinear di-higgs self coupling or BSM physics. The presented analysis is the first CMS search for di-higgs processes in the multilepton final states motivated by h→ WW and h→ ττ decays. It aims at providing limits on the trilinear higgs self coupling as well as various cross section limits for BSM scenarios featuring either EFT modified couplings or heavy resonances decaying into higgs bosons. This talk focuses on the theoretical motivation and projected results of the presented analysis. There is a second talk focusing on the experimental methodology.