Cosmology with a TeV mass GUT Higgs
David H. Lyth, Ewan D. Stewart
Abstract
The most natural way to break the GUT gauge symmetry is with a Higgs field whose vacuum expectation value is of order 1016\,GeV but whose mass is of order 102 to 103\,GeV. This can lead to a cosmological history radically different from what is usually assumed to have occurred between the standard inflationary and nucleosynthesis epochs, which may solve the gravitino and Polonyi/moduli problems in a natural way.
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