Seed perturbations for primordial magnetic fields from MSSM flat directions

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dc.creatorEnqvist, Kari
dc.creatorJokinen, Asko
dc.creatorMazumdar, Anupam
dc.date2004-04-29
dc.date.accessioned2026-07-07T03:52:25Z
dc.date.available2026-07-07T03:52:25Z
dc.descriptionWe demonstrate that the 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 $SU(2) x U(1)_Y$ gauge currents are generated together with (hyper)magnetic fields. When these long wavelength vector perturbations reenter our horizon they give rise to $U(1)_{em}$ magnetic fields with an amplitude of $10^{-30}$ Gauss, as required by the dynamo mechanism.
dc.description4 pages, RevTeX4
dc.identifierhttps://arxiv.org/abs/hep-ph/0404269
dc.identifierhttp://arxiv.org/abs/hep-ph/0404269
dc.identifierJCAP 0411 (2004) 001
dc.identifierdoi:10.1088/1475-7516/2004/11/001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/43459
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleSeed perturbations for primordial magnetic fields from MSSM flat directions
dc.typetext

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