micr OMEGAs: a program for calculating the relic density in the MSSM. G. Belanger, F. Boudjema, A. Pukhov, A. Semenov.

PROGRAM SUMMARY
Title of program: micrOMEGAs
Catalogue identifier: ADQR
Ref. in CPC: 149(2002)103
Distribution format: tar gzip file
Operating system: Linux, OSF1, IRIX64, SunOS
High speed store required: 17MK words
Number of lines in distributed program, including test data, etc: 43388
Keywords: Elementary particle physics, QCD.
Programming language used: C
Computer: PC , Alpha , Silicon graphics , Sun .

Nature of physical problem:
Calculation of the relic density of the lightest supersymmetric particle particle in the MSSM.

Method of solution:
In solving the Boltzmann equation, relativistic formulae for the thermal average are used. All tree-level processes for annihilation and coannihilation of SUSY particles are included. The cross-sections for all processes are calculated exactly with ComHEP. Two-loop corrections to the Higgs masses are calculated with FeynHiggsFast. QCD corrections to the Higgs width are extracted from HDECAY. A linkd to ISASUGRA is provided as an option to calculate the parameters of the MSSM at the weak scale.

Typical running time:
0.2 sec.

Unusual features:
Depending on the parameters of the model, the program generates additional new code, compiles it and loads it dynamically.