Cosmic perturbations, baryon asymmetry and dark matter from the minimal supersymmetric standard model

Understand

Scalar fields in the minimal supersymmetric standard model may have large field values during inflation.

• Because of approximate global symmetry, it is plausible that the phase directions of them are nearly massless during inflation and obtain quantum fluctuations, which may be the origin of the cosmic perturbations.
• If perturbations are produced through Q-ball formation, baryon asymmetry and dark matter can be consistently generated.
• Significant baryon and dark matter isocurvature perturbations are produced, but they are predicted to nearly compensate each other.