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

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arxiv 1910.12769 v2 pith:T2OGFXX7 submitted 2019-10-28 hep-ph

Shinya Kanemura , Mariko Kikuchi , Kentarou Mawatari , Kodai Sakurai , Kei Yagyu This is my paper · ORCID
classification hep-ph
keywords h-couphiggsbosonmodelsdecayextendedone-looprates
verification ladder T0 review T1 audit T2 compute T3 formal
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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. We then explain how to install and run H-COUP_ver 2 with some numerical examples.

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