micrOMEGAs: Version 1.3

By G. B'elanger, Fawzi Boudjema, Alexander Pukhov, A. Semenov. Computer Physics Communications, 2004

377 citations recorded by the source corpus.

We present the latest version of micromegas, a code that calculates the relic density of the lightest supersymmetric particle in the MSSM. All tree-level processes for the annihilation of the LSP are included as well as all possible coannihilation processes with neutralinos, charginos, sleptons, squarks and gluinos. The cross-sections extracted from CalcHEP are calculated exactly using loop-corrected masses and mixings as specified in the SUSY Les Houches Accord. Relativistic formulae for the thermal average are used and care is taken to handle poles and thresholds by adopting specific integration routines. The input parameters can be either the soft SUSY parameters in a general MSSM or the parameters of a SUGRA model specified at some high scale (GUT). In the latter case, a link with Suspect, Softsusy, Spheno and Isajet allows to calculate the supersymmetric spectrum, Higgs masses, as well as mixing matrices. Higher-order corrections to Higgs couplings to quark pairs including QCD as well as some SUSY corrections (deltaMb) are implemented. Routines calculating (g-2), bsgamma and bsmumu are also included. In particular the bsgamma routine includes an improved NLO for the SM and the charged Higgs while the SUSY large tan(beta) effects beyond leading-order are included. This new version also provides cross-sections for any 2->2 process as well as partial decay widths for two-body final states in the MSSM allowing for easy simulation at colliders.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/307ec8a82c0268c6d6a1d17fcfac23c4c571b036

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Citations in the corpus

SuperIso v2.3: A program for calculating flavor physics observables in supersymmetry (2008, background): “The electromagnetic correction ǫem can be written as [29]: ǫem = α αs(μb) (”
micrOMEGAs4.1: Two dark matter candidates (2014, background): “The parameter Beps defines the criteria for including a given coannihilation channel in the computation of the thermally averaged cross-section, [38].”
NMHDECAY 2.1: An updated program for sparticle masses, Higgs masses, couplings and decay widths in the NMSSM (2005, background): “Isajet [12], SoftSusy [13], MicrOMEGAs [ 14 ], Suspect [15], Spheno [16], CPSUPERH [17],”