Abstract
We discuss the inflationary production of magnetic seeds for the galactic dynamo through photon-graviphoton mixing, typical of extended models of local supersymmetry. An analysis of the allowed region in parameter space shows that such a mechanism is compatible with existing phenomelogical bounds on the vector mass and mixing parameter, but requires a large enough mixing that seems difficult to implement naturally in the context of a minimal supersymmetric scenario.
- Received 10 July 2000
DOI:https://doi.org/10.1103/PhysRevD.63.047301
©2001 American Physical Society