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Article
Report number arXiv:2306.11392 ; KA-TP-12-2023 ; PSI-PR-23-18 ; CERN-TH-2023-112
Title Charged Higgs-Boson Decays into Quarks
Author(s) Chang, Jamie (PSI, Villigen) ; Kirk, Fiona (Braunschweig, Phys. Tech. Bund. ; CERN) ; Mühlleitner, Margarete (KIT, Karlsruhe, TP) ; Spira, Michael (PSI, Villigen)
Publication 2023-08-19
Imprint 2023-06-20
Number of pages 22
In: Nucl. Phys. B 995 (2023) 116330
DOI 10.1016/j.nuclphysb.2023.116330 (publication)
Subject category hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
Abstract We consider the full genuine next-to-leading order SUSY-QCD corrections to the charged Higgs decays into quarks supplemented by the NNLO corrections to the effective top and bottom Yukawa couplings. The NNLO corrections to the effective top Yukawa coupling are a new ingredient of our analysis. We arrive at an approximate NNLO prediction for MSSM charged Higgs decays after including the N$^4$LO QCD corrections for large charged Higgs masses. The residual uncertainties are in the percent range or below, depending on the particular MSSM scenario.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © 2023-2025 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³



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