H-COUP: a program for one-loop corrected Higgs boson couplings in non-minimal Higgs sectors
Shinya Kanemura, Mariko Kikuchi, Kodai Sakurai, Kei Yagyu
TL;DR
H-COUP is a Fortran-based computational tool that calculates one-loop electroweak corrected Higgs boson couplings across various extended Higgs sector models, aiding precision Higgs physics studies.
Contribution
It introduces a new numerical program that computes one-loop corrected Higgs couplings in multiple non-minimal Higgs models with gauge-independent renormalization.
Findings
Provides one-loop corrected Higgs couplings for several models
Includes detailed instructions and sample outputs
Enables precise Higgs sector analysis
Abstract
We describe a numerical calculation tool H-COUP written in Fortran, which provides one-loop electroweak corrected vertices for the discovered Higgs boson in various Higgs sectors. The renormalization is based on the improved on-shell scheme without gauge dependence. In the first version H-COUP_1.0, the following models are included, namely, the Higgs singlet model, four types (Type-I, Type-II, Type-X, Type-Y) of two Higgs doublet models with a softly-broken symmetry and the inert doublet model. We first briefly introduce these models and then explain how to install and run this tool in an individual machine. A sample of numerical outputs is provided for user information.
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