Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 78: Higgs: Extended models

T 78.2: Vortrag

Donnerstag, 2. April 2020, 16:45–17:00, H-HS XVI

Analysis of heavy Higgs boson decays into lighter Higgs bosons in the bb+ττ final state — •Janek Bechtel, Günter Quast, and Roger Wolf — Karlsruhe Institute of Technology, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany

In the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM), an additional complex Higgs singlet leads to modifications in the Higgs sector resulting in seven Higgs bosons, of which three are scalar, two are pseudoscalar and two are charged. One scalar Higgs boson can be identified with the observed Higgs boson at 125 GeV. The lightest additional boson (h’) can be lighter or heavier than 125 GeV, and its coupling to quarks and leptons can be suppressed, such that the dominant production of h’ is via the decay of a heavy Higgs boson into the 125 GeV Higgs boson plus this additional boson h’. A promising decay channel to find these states is the decay of one boson into b quarks, and of the other into tau leptons. In the talk, the signal simulation towards this measurement and an analysis strategy in this final state using data collected by the CMS experiment are presented.

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