SuperIso Relic: A program for calculating relic density and flavor physics observables in Supersymmetry

TL;DR

SuperIso Relic is a public software tool that calculates relic density and flavor physics observables in the MSSM, incorporating annihilation processes, Higgs widths, and cosmological assumptions.

Contribution

It extends the SuperIso program to include relic density calculations with all relevant annihilation and coannihilation processes at tree level.

Findings

Accurately computes relic density considering all annihilation channels.

Includes Higgs boson widths at two-loop level for precision.

Allows modification of cosmological assumptions to study their effects.

Abstract

We describe SuperIso Relic, a public program for evaluation of relic density and flavor physics observables in the minimal supersymmetric extension of the Standard Model (MSSM). SuperIso Relic is an extension of the SuperIso program which adds to the flavor observables of SuperIso the computation of all possible annihiliation and coannihilation processes of the LSP which are required for the relic density calculation. All amplitudes have been generated at the tree level with FeynArts/FormCalc, and widths of the Higgs bosons are computed with FeynHiggs at the two-loop level. SuperIso Relic also provides the possibility to modify the assumptions of the cosmological model, and to study their consequences on the relic density.