HCOUP Version 2: A program for oneloop corrected Higgs boson decays in nonminimal Higgs sectors
Abstract
We present the concept of HCOUP_ver 2, which evaluates the decay rates (including higher order corrections) for the Higgs boson with a mass of 125GeV in various extended Higgs models. In the previous version (HCOUP_1.0), only a full set of the Higgs boson vertices are evaluated at oneloop level in a gauge invariant manner in these models. HCOUP_ver 2 contains all the functions of HCOUP_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. We then explain how to install and run HCOUP_ver 2 with some numerical examples.
 Publication:

Computer Physics Communications
 Pub Date:
 December 2020
 DOI:
 10.1016/j.cpc.2020.107512
 arXiv:
 arXiv:1910.12769
 Bibcode:
 2020CoPhC.25707512K
 Keywords:

 Higgs decays;
 Extended Higgs models;
 Radiative corrections;
 High Energy Physics  Phenomenology
 EPrint:
 26 pages, 4 figures, 7 tables