Dark matter and dark radiation from the early universe with a modulus coupled to the PQMSSM

Understand

The supersymmetrized DFSZ axion model is especially compelling in that it contains 1.

• the SUSY solution to the gauge hierarchy problem, 2.
• the Peccei-Quinn (PQ) solution to the strong CP problem and 3.
• the Kim-Nilles solution to the SUSY mu problem.