Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 9: Higgs: Erweiterte Modelle

T 9.8: Vortrag

Montag, 25. März 2019, 17:45–18:00, S07

Possible NMSSM deviations from the SM-like signal strengths of the 125 GeV Higgs boson — •Conny Beskidt¹, Wim de Boer¹, and Dmitri Kazakov^1,2 — ¹Karlsruhe Institute of Technology (IETP) — ²JINR, ITEP, Moscow, Russia

In the next-to minimal supersymmetric standard model (NMSSM) seven Higgs bosons are predicted: 3 scalar, 2 pseudo-scalar and 2 charged Higgs bosons. In the decoupling limit where the heavier Higgs bosons are well above the Z-boson mass limit and the mixing of the Higgs singlet and doublets is small, the NMSSM prefers SM-like couplings for one of the light Higgs bosons. The signal strengths are defined as the ratio of the production cross sections times branching ratios divided by the SM predictions. We investigate the regions of parameter space where the signal strength of the observed 125 GeV Higgs boson can deviate from one and if deviations would be observed, the correlation between the deviations for signal strengths to vector bosons and fermions.