Introduction In the last 30 years we have made great progress both ...

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MicrOMEGAs is a package for calculation of different observablesrelated to Dark Matter. It was created in French-Russancollaboration by G.Belanger, F.Boudjema (LAPTH),A.Semenov (JINR), A. Pukhov (SINP)The main features of micrOMEGAs is calculation of DM properties inframework of generic model of particle interaction.2
Massive Stable ParticleTo describe DM first of all we need a model with a stable massiveparticle (WIMP?). For this we need, for example, a Z 2 symmetrywhich divides all particles into two classes, odd and even. If theparity is conserved, then the lightest odd particle is stable. Inmany models such symmetry appears quite natural. Forinstance, in SUSY models SM particles are even under R-paritywhile their superpartners are odd. In models with one extradimension x 5-> -x 5symmetry leads to corresponding Z 2 .Models with Z n symmetry also have a stable particle. For n>3several stable particles can appear. Practically we meet Z 2 andZ 3 cases.3
Page 1: MicrOMEGAs - a package for calculat
Page 5 and 6: In the framework of a given model o
Page 7 and 8: C) Solar neutrinos. In some sense t
Page 9 and 10: To Downloadhttp://lapth.in2p3.fr/mi
Page 11 and 12: Compilation of CalcHEP and micromeg
Page 13 and 14: Module structure of main programs.m
Page 15 and 16: Parameters of main programs.Default
Page 17 and 18: ==== Physical Constraints: =====del
Page 19 and 20: Free parameters of the model.Free m
Page 21 and 22: Constrained parameter of the model.
Page 23 and 24: err = sortOddParticles( stext)This
Page 25 and 26: Shared libraries of matrix elements
Page 27 and 28: Calculation of particle widths in m
Page 29 and 30: Coannihilation and Beps parameterAs
Page 31 and 32: We define abundance Y=N/s to remove
Page 33 and 34: Ω = M cdm [GeV] * Y * (2.889 10 9
Page 36 and 37: vSigma[pb] & Yeqfor MSUGRA modelM0

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