micrOMEGAs : a tool for dark matter studies

TL;DR

micrOMEGAs provides a versatile, CalcHEP-based framework to compute key dark matter observables across standard-model extensions that stabilize a DM candidate. It automates relic density calculations with full annihilation and coannihilation channels, and integrates direct and indirect detection predictions as well as collider-flavour constraints. The paper emphasizes generality, modularity, and the potential for loop-corrected refinements, highlighting the tool's capacity to handle diverse models beyond the MSSM. Overall, it positions micrOMEGAs as a flexible platform for exploring DM phenomenology and constraining models with current and upcoming data.

Abstract

micrOMEGAs is a tool for cold dark matter (DM) studies in generic extensions of the standard model with a R-parity like discrete symmetry that guarantees the stability of the lightest odd particle. The code computes the DM relic density, the elastic scattering cross sections of DM on nuclei relevant for direct detection, and the spectra of positrons, anti-protons and photons originating from DM annihilation including porpagation of charged cosmic rays. The cross sections and decay properties of new particles relevant for collider studies are included as well as constraints from the flavour sector on the parameter space of supersymmetric models.