Next-to-leading order corrections to decays of the heavier CP-even Higgs boson in the two Higgs doublet model

نویسندگان

چکیده

We investigate the impact of electroweak (EW), scalar and QCD corrections to full set decay branching ratios an additional CP-even Higgs boson ($H$) in two doublet model with a softly broken $Z_2$ symmetry. employ improved gauge independent on-shell scheme renormalized vertices. particularly focus on scenario near alignment limit which couplings discovered 125 GeV ($h$) coincide those standard while $Hhh$ coupling vanishes at tree level. The rate for $H\to hh$ can significantly be changed from prediction level due non-decoupling loop effects bosons, even case. find that radiative ratio few ten percent case masses bosons being degenerate under constraints perturbative unitarity, vacuum stability EW precision data. Further sizable obtained mass difference among bosons.

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ژورنال

عنوان ژورنال: Nuclear Physics B

سال: 2022

ISSN: ['1873-1562', '0550-3213']

DOI: https://doi.org/10.1016/j.nuclphysb.2022.115906