Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 60: Theorie: Higgs / BSM I

T 60.4: Vortrag

Mittwoch, 21. März 2018, 17:15–17:30, Z6 - SR 1.010

The charged Higgs decay H^±→ W^±h at one-loop order in the NMSSM — Thi Nhung Dao¹, •Lukas Fritz², Margarete Mühlleitner², and Shruti Patel² — ¹IFIRSE, Quy Nhon, Vietnam — ²KIT, Karlsruhe, Deutschland

Charged Higgs bosons appear in extended Higgs sectors beyond the Standard Model (SM) like e.g. the Next-to-Minimal Supersymmetric extension (NMSSM). They are of special phenomenological interest because their detection would be an immediate sign of beyond-the-SM physics. Depending on the parameter choice the decay of the charged Higgs boson into a W-Boson and a neutral Higgs boson, H^±→ W^±h, is one of dominant decay channels and be exploited to search for the charged Higgs boson at the LHC. The NMSSM belongs to the most intensely studied supersymmetric models and is motivated, besides the solution of the µ-problem, by its interesting phenomenology and the possibility of generating a 125 GeV SM-like Higgs boson without the need of very heavy stops or large stop mixing. We compute the one-loop corrections to the decay H^±→ W^±h in the NMSSM. We investigate the numerical impact of the higher order corrections and give an estimate of the remaining theoretical uncertainty. We compare our findings to the case of the Minimal Supersymmetric Extension (MSSM) and discuss the implications for LHC phenomenology.