H-COUP Version 2: a program for one-loop corrected Higgs boson decays in non-minimal Higgs sectors

Understand

We present the concept of H-COUP_ver 2, which evaluates the decay rates (including higher order corrections) for the Higgs boson with a mass of 125 GeV in various extended Higgs models.

• In the previous version (H-COUP_1.0), only a full set of the Higgs boson vertices are evaluated at one-loop level in a gauge invariant manner in these models.
• H-COUP_ver 2 contains all the functions of H-COUP_1.0.
• After shortly introducing these extended Higgs models and discussing their theoretical and experimental constraints, we summarize formulae for the renormalized vertices and the decay rates.