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Electroweak Baryogenesis and the Expansion Rate of the Universe
A homogeneous mode of a scalar field in a ``fast roll'' ( \dot{\phi}^2 >> V(\phi)), which has an energy density scaling as 1/a^6 in an expanding universe, could dominate the universe at the electroweak epoch. The requirement that the energy in the mode red-shift away before nucleosyn...
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Lenguaje: | eng |
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1996
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Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.55.1875 http://cds.cern.ch/record/304635 |