Neutralino, axion and axino cold dark matter in minimal, hypercharged and gaugino AMSB

Understand

Supersymmetric models based on anomaly-mediated SUSY breaking (AMSB) generally give rise to a neutral wino as a WIMP cold dark matter (CDM) candidate, whose thermal abundance is well below measured values.

• Here, we investigate four scenarios to reconcile AMSB dark matter with the measured abundance: 1.
• non-thermal wino production due to decays of scalar fields ({\it e.g} moduli), 2.
• non-thermal wino production due to decays of gravitinos, 3.