Abstract
We demonstrate that the minimally supersymmetric standard model (MSSM) flat directions can naturally account for the seed magnetic fields in the early Universe. The non-zero vacuum expectation value of an MSSM flat direction condensate provides masses to the gauge fields and thereby breaks conformal invariance. During inflation the condensate receives spatial perturbations and SU(2) × U(1)Y gauge currents are generated together with (hyper)magnetic fields. When these long wavelength vector perturbations re-enter our horizon they give rise to U(1)em magnetic fields with an amplitude of 10−30 G, as required by the dynamo mechanism.
Original language | English |
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Article number | 001 |
Number of pages | 7 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2004 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov-2004 |
Externally published | Yes |