Gaugino coannihilations

Understand

The high-scale supersymmetry (SUSY) breaking scenario is now attracting many attentions, because it is consistent with almost all experiments of particle physics, astrophysics, and cosmology performed so far: e.g.

• it is possible to explain the Higgs mass of about 126GeV and contains WIMP dark matter candidates.
• In the scenario, gauginos are predicted to be around the TeV scale, and thus within a kinematically accessible range of near future experiments.
• Calculation of the thermal relic abundance for gaugino (bino or wino) dark matter is then of particular importance in order to clarify its mass consistent with cosmology and to determine future directions for exploring the high-scale SUSY breaking scenario.