New mechanism for the generation of primordial seeds for the cosmic magnetic fields

M. Gasperini
Phys. Rev. D 63, 047301 – Published 31 January 2001
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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

Authors & Affiliations

M. Gasperini

  • Dipartimento di Fisica, Università di Bari, Via G. Amendola 173, 70126 Bari, Italy
  • Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari, Italy

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Vol. 63, Iss. 4 — 15 February 2001

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