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We present an overview of the status and recent developments of FeynHiggs (current version: 2.14.3) since version 2.12.2. The main purpose of FeynHiggs is the calculation of the Higgs-boson masses and other physical observables in the MSSM.…

High Energy Physics - Phenomenology · Physics 2019-12-18 Henning Bahl , Thomas Hahn , Sven Heinemeyer , Wolfgang Hollik , Sebastian Paßehr , Heidi Rzehak , Georg Weiglein

We discuss the allowed parameter spaces of supersymmetric scenarios in light of improved Higgs mass predictions provided by FeynHiggs 2.10.0. The Higgs mass predictions combine Feynman-diagrammatic results with a resummation of leading and…

High Energy Physics - Phenomenology · Physics 2015-06-18 O. Buchmueller , M. J. Dolan , J. Ellis , T. Hahn , S. Heinemeyer , W. Hollik , J. Marrouche , K. A. Olive , H. Rzehak , K. de Vries , G. Weiglein

In the Minimal Supersymmetric Standard Model heavy superparticles introduce large logarithms in the calculation of the lightest $\mathcal{CP}$-even Higgs boson mass. These logarithmic contributions can be resummed using effective field…

High Energy Physics - Phenomenology · Physics 2018-05-23 Henning Bahl , Wolfgang Hollik

We discuss various improvements of the prediction for the light MSSM Higgs boson mass in the hybrid framework of the public code FeynHiggs, which combines fixed-order and effective field theory results. First, we discuss the resummation of…

High Energy Physics - Phenomenology · Physics 2020-12-02 Henning Bahl , Ivan Sobolev , Georg Weiglein

We discuss the parameter spaces of supersymmetry (SUSY) scenarios taking into account the improved Higgs-mass prediction provided by FeynHiggs 2.14.1. Among other improvements, this prediction incorporates three-loop renormalization-group…

High Energy Physics - Phenomenology · Physics 2019-03-27 E. Bagnaschi , H. Bahl , J. Ellis , J. Evans , T. Hahn , S. Heinemeyer , W. Hollik , K. A. Olive , S. Paßehr , H. Rzehak , I. V. Sobolev , G. Weiglein , J. Zheng

State-of-the-art predictions for the mass of the lightest MSSM Higgs boson usually involve the resummation of higher-order logarithmic contributions obtained within an effective-field-theory (EFT) approach, often combined with a fixed-order…

High Energy Physics - Phenomenology · Physics 2021-02-08 Henning Bahl , Ivan Sobolev , Georg Weiglein

The lightest Higgs boson mass of the Minimal Supersymmetric Standard Model has been recently computed diagrammatically at the three-loop order in the whole supersymmetric parameters space of the SUSY-QCD sector. The code FeynHiggs combines…

High Energy Physics - Phenomenology · Physics 2019-12-10 E. A. Reyes R. , A. R. Fazio

Precise predictions for Higgs boson masses in the Minimal Supersymmetric Standard Model can be obtained by combining fixed-order calculations with effective field theory (EFT) methods for the resummation of large logarithms in case of heavy…

High Energy Physics - Phenomenology · Physics 2018-08-15 Henning Bahl , Wolfgang Hollik

In 2012, the discovery of a particle compatible with a Higgs boson of a mass of roughly 125 GeV was announced. This great success is now being followed by the identification of the nature of this particle and the particle's properties are…

High Energy Physics - Phenomenology · Physics 2014-07-02 Thomas Hahn , Sven Heinemeyer , Wolfgang Hollik , Heidi Rzehak , Georg Weiglein

We present the latest version 2.6 of FeynHiggs, a program for computing MSSM Higgs-boson masses and related observables, such as mixing angles, branching ratios, and couplings, including state-of-the-art higher-order contributions. The most…

High Energy Physics - Phenomenology · Physics 2007-10-26 T. Hahn , S. Heinemeyer , W. Hollik , H. Rzehak , G. Weiglein

The particle discovered in the Higgs boson searches at the LHC with a mass of about 125 GeV can be identified with one of the neutral Higgs bosons of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). We calculate predictions for…

High Energy Physics - Phenomenology · Physics 2017-02-22 Peter Drechsel , Leonardo Galeta , Sven Heinemeyer , Georg Weiglein

The remaining theoretical uncertainties from unknown higher-order corrections in the prediction for the light Higgs-boson mass of the MSSM are estimated. The uncertainties associated with three different approaches that are implemented in…

High Energy Physics - Phenomenology · Physics 2020-06-24 Henning Bahl , Sven Heinemeyer , Wolfgang Hollik , Georg Weiglein

Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise…

The discovery of the Higgs boson is both a milestone achievement for the Standard Model and an exciting probe of new physics beyond the SM. One of the most important properties of the Higgs is its mass, a number that has proven to be highly…

High Energy Physics - Phenomenology · Physics 2017-02-23 Patrick Draper , Heidi Rzehak

Recent higher-order results for precision observables in the Standard Model (SM) and the Minimal Supersymmetric Standard Model (MSSM) and for the neutral CP-even Higgs-boson masses of the MSSM are summarized. Furthermore a brief discussion…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Weiglein

An updated version is presented of the Fortran code FeynHiggs for the evaluation of the neutral CP-even Higgs sector masses and mixing angles. It differs from the previous version by a modification of the renormalization scheme concerning…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Frank , S. Heinemeyer , W. Hollik , G. Weiglein

A summary of recent results obtained for higher-order corrections to precision observables in the Standard Model and the Minimal Supersymmetric Standard Model is given. In the Standard Model electroweak two-loop results valid for arbitrary…

High Energy Physics - Phenomenology · Physics 2011-03-02 G. Weiglein

We discuss the lower Higgs boson mass bounds which come from the absolute stability of the Standard Model (SM) vacuum and from the Higgs inflation, as well as the prediction of the Higgs boson mass coming from asymptotic safety of the SM.…

High Energy Physics - Phenomenology · Physics 2015-06-05 Fedor Bezrukov , Mikhail Yu. Kalmykov , Bernd A. Kniehl , Mikhail Shaposhnikov

We present a precise analysis of the Higgs mass corrections stemming from vectorlike top partners in supersymmetric models. We reduce the theoretical uncertainty compared to previous studies in the following aspects: (i) including the…

High Energy Physics - Phenomenology · Physics 2015-08-03 Kilian Nickel , Florian Staub

Various methods are used in the literature for predicting the lightest CP-even Higgs boson mass in the Minimal Supersymmetric Standard Model (MSSM). Fixed-order diagrammatic calculations capture all effects at a given order and yield…

High Energy Physics - Phenomenology · Physics 2018-02-14 Henning Bahl , Sven Heinemeyer , Wolfgang Hollik , Georg Weiglein
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