FeynHiggs: a program for the calculation of the masses of the neutral -even Higgs bosons in the MSSM
Abstract
FeynHiggs is a Fortran code for the calculation of the masses of the neutral -even Higgs bosons in the MSSM up to two-loop order. It is based on the complete diagrammatic on-shell result at the one-loop level, the leading diagrammatic two-loop QCD contributions and further improvements taking into account leading electroweak two-loop and leading higher-order QCD corrections. The Higgs-boson masses are calculated as functions of the MSSM parameters for general mixing in the scalar top sector and arbitrary choices of the parameters in the Higgs sector of the model.
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EasyScan_HEP: A tool for connecting programs to scan the parameter space of physics models
2024, Computer Physics CommunicationsWe present an application, EasyScan_HEP, for connecting programs to scan the parameter space of High Energy Physics (HEP) models using various sampling algorithms. We develop EasyScan_HEP according to the principle of flexibility and usability. EasyScan_HEP allows us to connect different programs that calculate physical observables, and apply constraints by one human-readable configuration file. All programs executed through command lines can be connected to EasyScan_HEP by setting input and output parameters of the programs. The current version offers the sampling algorithms of Random, Grid, Markov chain Monte Carlo and MultiNest. We also implement features such as resume function, parallelization, post-processing, and quick analysis.
Program Title: EasyScan_HEP
CPC Library link to program files: https://doi.org/10.17632/4fcb77dxfw.1
Developer's repository link: https://github.com/phyzhangyang/EasyScan_HEP
Licensing provisions: Apache 2.0
Programming language: Python
Nature of problem: Performing numerical analysis of new physics models is crucial in High Energy Physics (HEP), and requires scanning parameter space using various HEP packages. Connecting these packages together can be cumbersome, time-consuming, and prone to errors, especially when using advanced scanning methods, due to the lack of a unified interface between these software and scanning methods.
Solution method: EasyScan_HEP utilizes the ConfigParser module in Python to read a unified and human-readable configuration file that connects HEP packages and sets scanning methods. We employ the subprocess.Popen and os.system functions to execute HEP programs, and provide users with various options to configure input parameters and retrieve output parameters, as well as several pre-installed scanning methods.
Additional comments including restrictions and unusual features: EasyScan_HEP is not designed for specific models or HEP packages. Instead, it is compatible with almost any program that can be executed via the command line, requiring minimal interface modifications.
SuSpect3: A C++ code for the supersymmetric and Higgs particle spectrum of the MSSM
2023, Computer Physics CommunicationsWe present the program SuSpect3 that calculates the masses and couplings of the Higgs and supersymmetric particles predicted by the Minimal Supersymmetric Standard Model (MSSM). The model is implemented in both its non-constrained version, the MSSM, and its constrained versions, such as the minimal supergravity and the gauge or anomaly mediated supersymmetry breaking models, in which the soft supersymmetry–breaking parameters obey certain universal boundary conditions at the high energy scale. The low energy parameters are then obtained using renormalization group equations and electroweak symmetry breaking, and all the dominant radiative corrections have been consistently implemented. SuSpect3 is a major rewrite, in C++ object oriented programming, of the FORTRAN code SuSpect. It includes all the features of the earlier code in an improved and updated manner, and involves new options such as compressed SUSY scenarios, an MSSM-inflation model and the possibility of using the observed Higgs mass as an input. The main features and the use of the program are explained.
Program Title: SuSpect3
CPC Library link to program files: https://doi.org/10.17632/55jv4kdrm8.1
Developer's repository link: http://suspect.in2p3.fr
Licensing provisions: GPLv3
Programming language: C++, compatible C++98, C++11, C++14, C++17
Nature of problem: Supersymmetric models such as the MSSM, mSUGRA, GMSB, AMSB and others have specific parameter sets and boundary conditions. SuSpect3 translates the parameter sets of the models into predictions of the Higgs and supersymmetric particles masses. The mixing matrices of the physical states as well as the mixing angles are calculated in addition to the scale dependent parameters.
Solution method: The spectrum of the Higgs and supersymmetric particles depends on the model, its supersymmetric parameter set and the Standard Model parameters. The evolution of the parameters as function of the energy scale is calculated by solving numerically the Renormalization Group Equations. Model dependent boundary conditions are applied at the appropriate scale. Electroweak symmetry breaking is calculated iteratively at the electroweak scale. The application of radiative corrections translate the scale dependent particle masses into the physical pole masses.
Additional comments including restrictions and unusual features: The parameters and physical masses are defined to be real. Warnings are issued if intermediate results are unphysical.
Compiles with gcc-4.8.5 and later (checked with gcc-8.1.0).
Investigating non-minimal flavour-violating CMSSM in the light of Higgs-Boson mass using information theory
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