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T: Fachverband Teilchenphysik

T 55: Bosonic and Rare Higgs decays

T 55.7: Vortrag

Mittwoch, 17. März 2021, 17:30–17:45, Te

Search for pair-produced Higgs bosons decaying to W bosons and bottom quarks at CMS — •Mathis Frahm, Johannes Haller, Matthias Schröder, Dennis Schwarz, and Roman Kogler — Institut für Experimentalphysik, Universität Hamburg

The Higgs boson self-coupling is an important parameter of the Standard Model, since it is related to the shape of the Higgs potential. At the LHC, this parameter can be probed by measuring the Higgs boson pair production cross section. In the Standard Model, HH production occurs in processes that include the Higgs-boson self-coupling and in processes that include a fermion loop. Due to destructive interference of these two contributions, the resulting production cross-section is small, amounting to only 33 fb at the LHC.

In this talk, studies of the properties and the reconstruction of the signal are presented, focusing on the decay channel of two W bosons and two bottom quarks, where one W boson decays leptonically and the other one hadronically.