Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 55: Bosonic and Rare Higgs decays

T 55.6: Vortrag

Mittwoch, 17. März 2021, 17:15–17:30, Te

Di-Higgs physics with the CMS experiment in multilepton final states - Experimental methodology — •Tobias Kramer, Torben Lange, Oliver Rieger, and Peter Schleper — Institut für Experimentalphysik, Universität Hamburg

The first CMS analysis searching for di-Higgs events in multilepton final states is presented. The full LHC Run 2 dataset corresponding to 137 fb⁻¹ recorded by the CMS experiment at a center of mass energy of √s=13 TeV is used. Several scenarios for producing events with two SM Higgs bosons are considered, such as the decay of heavy resonances as well as non-resonant production via the SM as well as EFT modified couplings. The targeted Higgs decays are h→ WW and h→ ττ leading to various multilepton final states. The analysis aims at providing limits on the yet to be discovered trilinear Higgs self coupling as well as cross section limits for different BSM scenarios. This talk focuses on the experimental challenges. There is a second talk about the theoretical motivation and projected results.