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Manuscript Title: micrOMEGAs 2.0: a program to calculate the relic density of dark matter in a generic model
Authors: G. Bélanger, F. Boudjema, A. Pukhov, A. Semenov
Program title: micrOMEGAs2.0
Catalogue identifier: ADQR_v2_0 Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 176(2007)367
Programming language: C and Fortran.
Computer: PC, Alpha, Mac, Sun.
Operating system: UNIX (Linux, OSF1, SunOS, Darwin, Cygwin).
RAM: ~17MB depending on the number of processes required.
Keywords: Dark matter, relic density, MSSM, Beyond Standard Model.
PACS: 95.35.+d, 14.80.Ly, 12.60.Jv.
Classification: 1.9, 11.6.
Does the new version supersede the previous version?: Yes
Nature of problem: Calculation of the relic density of the lightest stable particle in a generic new model of particle physics.
Solution method: In numerically solving the evolution equation for the density of darkmatter, relativistic formulae for the thermal average are used. All tree-level processes for annihilation and coannihilation of new particles in the model are included. The cross-sections for all processes are calculated exactly with CalcHEP after definition of a model file. Higher-order QCD corrections to Higgs couplings to quark pairs are included.
Reasons for new version: There are many models of new physics that propose a candidate for dark matter besides the much studied minimal supersymmetric standard model. This new version not only incorporates extensions of the MSSM, such as the MSSM with complex phases, or the NMSSM which contains an extra singlet superfield but also gives the possibility for the user to incorporate easily a new model. For this the user only needs to redefine appropriately a new model file.
Summary of revisions: Possibility to include in the package any particle physics model with a discrete symmetry that guarantees the stability of the cold dark matter candidate (LOP) and to compute the relic density of CDM. Compute automatically the cross-sections for annihilation of the LOP at small velocities into SM final states and provide the energy spectra for γ,e⁺, pbar,ν final states. For the MSSM with input parameters defined at the GUT scale, the interface with any of the spectrum calculator codes reads an input file in the SUSY Les Houches Accord format (SLHA). Implementation of the MSSM with complex parameters (CPV-MSSM) with an interface to CPsuperH to calculate the spectrum. Routine to calculate the electric dipole moment of the electron in the CPV-MSSM In the NMSSM, new interface compatible with NMHDECAY2.1.
Unusual features: Depending on the parameters of the model, the program generates additional new code, compiles it and loads it dynamically.
Running time: 0.2 sec