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Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis

We show that the presence of primordial stochastic (hypercharge) magnetic fields before the electroweak (EW) phase transition induces isocurvature fluctuations (baryon number inhomogeneities). Depending on the details of the magnetic field spectrum and on the particle physics parameters (such as the...

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Detalles Bibliográficos
Autores principales: Giovannini, Massimo, Shaposhnikov, M.E.
Lenguaje:eng
Publicado: 1997
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.80.22
http://cds.cern.ch/record/331799