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Related papers: HFOLD - a program package for calculating two-body…

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We present the program package SUSY-HIT for the computation of supersymmetric particle decays within the framework of the Minimal Supersymmetric extension of the Standard Model. The code is based on two existing programs HDECAY and SDECAY…

High Energy Physics - Phenomenology · Physics 2011-04-11 A. Djouadi , M. M. Muhlleitner , M. Spira

This manual describes the public code 2HDMC which can be used to perform calculations in a general, CP-conserving, two-Higgs-doublet model (2HDM). The program features simple conversion between different parametrizations of the 2HDM…

High Energy Physics - Phenomenology · Physics 2009-12-04 David Eriksson , Johan Rathsman , Oscar Stål

The virtual two-loop corrections for Higgs production in gluon fusion are calculated analytically in QCD for arbitrary Higgs and quark masses. Both scalar and pseudo-scalar Higgs bosons are considered. The results are obtained by expanding…

High Energy Physics - Phenomenology · Physics 2016-09-06 Robert Harlander , Philipp Kant

In this talk I present a detailed SUSY QCD calculation of the decay rate of the lightest Higgs boson $H^0_2$\ into two gluons, where all quarks and scalar quarks are taken within the relevant loop diagrams. I include the mixing of all the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Heinz König

We present a complete one-loop computation of the $H^\pm \rightarrow W^\pm Z$ decay in the aligned two-Higgs-doublet model. The constraints from the electroweak precision observables, perturbative unitarity, vacuum stability and flavour…

High Energy Physics - Phenomenology · Physics 2018-12-12 Gauhar Abbas , Diganta Das , Monalisa Patra

In this work we present the computation of the Higgs decay into a photon and a $Z^0$ boson at one-loop level in the framework of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The numerical evaluation of this decay width was…

High Energy Physics - Phenomenology · Physics 2014-07-22 G. Belanger , V. Bizouard , G. Chalons

The brief discussion of the studies of the radiative QCD corrections to the decay widths and branching ratios of the Standard Model Higgs boson with the mass 2 m_b < M_H < 2 M_W is given. The numerical results are obtained with the help of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andrei L. Kataev , Victor T. Kim

We present a complete set of decay rates of the Higgs boson with the mass of 125 GeV at the full next-to-leading order in a variety of extended Higgs models; i.e., a model with an additional real singlet scalar field, four types of two…

High Energy Physics - Phenomenology · Physics 2020-01-08 Shinya Kanemura , Mariko Kikuchi , Kentarou Mawatari , Kodai Sakurai , Kei Yagyu

We describe the the improved properties of the NMHDECAY program, that is designed to compute Higgs and sparticle masses and Higgs decay widths in the NMSSM. In the version 2.0, Higgs decays into squarks and sleptons are included,…

High Energy Physics - Phenomenology · Physics 2011-06-02 Ulrich Ellwanger , Cyril Hugonie

The Standard-Model Higgs boson with mass $ M_H >> 2M_Z $ decays almost exclusively to pairs of $W$ and $Z$ bosons. We calculate the dominant two-loop corrections of $ O( G_F^2 M_H^4 )$ to the partial widths of these decays. In the…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Frink , B. A. Kniehl , D. Kreimer , K. Riesselmann

We present next-to-leading-order (NLO) QCD and electroweak (EW) results using the dimension-6 SMEFT for all 2- and 4- body Higgs decays, for $Z$ and $W$ decays along with the corresponding EW precision observables, and for the Higgstrahlung…

High Energy Physics - Phenomenology · Physics 2026-05-19 Luigi Bellafronte , Sally Dawson , Clara Del Pio , Matthew Forslund , Pier Paolo Giardino

In order to identify the Higgs sector realized in nature, the predictions for Higgs boson masses, production cross sections and decay widths have to be compared with experimental results. We give a brief overview about computer codes for…

High Energy Physics - Phenomenology · Physics 2008-12-09 S. Heinemeyer

In Ref.~\cite{paper} we calculated all the experimentally relevant branching ratios of the Higgs bosons of the Minimal Supersymmetric Standard Model, paying particular attention to the contributions from below--threshold decays.…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. Moretti , W. J. Stirling

This article describes the code SusHi (for "Supersymmetric Higgs") which calculates the cross sections $pp/p\bar{p}\rightarrow\phi+X$ in gluon fusion and bottom-quark annihilation in the SM and the MSSM, where $\phi$ is any of the neutral…

High Energy Physics - Phenomenology · Physics 2013-03-20 Robert V. Harlander , Stefan Liebler , Hendrik Mantler

Future precision measurements of Higgs boson decays will determine the branching fraction for the decay into two photons with a precision at the one percent level. To fully exploit such measurements, equally precise theoretical predictions…

High Energy Physics - Phenomenology · Physics 2021-10-04 Joshua Davies , Florian Herren

Since no direct signs of new physics have been observed so far indirect searches in the Higgs sector have become increasingly important. With the discovered Higgs boson behaving very Standard Model (SM)-like, however, indirect new physics…

High Energy Physics - Phenomenology · Physics 2020-12-02 Julien Baglio , Thi Nhung Dao , Margarete Muhlleitner

We calculate the complete one-loop electroweak corrections to the inclusive $H\rightarrow ZZ$ and $H\rightarrow Z\gamma$ decays in the dimension-$6$ extension of the Standard Model Effective Field Theory (SMEFT). The corrections to…

High Energy Physics - Phenomenology · Physics 2024-06-04 Sally Dawson , Pier Paolo Giardino

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…

High Energy Physics - Phenomenology · Physics 2020-08-26 Shinya Kanemura , Mariko Kikuchi , Kentarou Mawatari , Kodai Sakurai , Kei Yagyu

The Fortran code SDECAY calculates the decay widths and branching ratios of all supersymmetric (SUSY) particles in the Minimal Supersymmetric Standard Model (MSSM), including higher order effects. The usual two-body decays of sfermions and…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Muhlleitner

In this paper we present general formulae for the calculation of LFV Higgs decays $H_r \to l_a l_b$ at one-loop, with $H_r$ being part of the Higgs spectrum of a generic multi-scalar extension of the Standard Model (SM) with neutrino…

High Energy Physics - Phenomenology · Physics 2023-03-22 M. Zeleny-Mora , J. Lorenzo Díaz-Cruz , O. Félix-Beltrán