Baryogenesis, proton decay and fermion masses in supergravity guts

Details Baryogenesis, proton decay and fermion masses in supergravity guts Baryogenesis, proton decay and fermion masses in supergravity guts

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phlb..158..401c&link_type=abstract

Physics Letters B, Volume 158, Issue 5, p. 401-408.

Physics

20

Scientific paper

In realistic N = 1 supergravity theories with a gravitino mass of order 1 TeV, the reheat temperature after inflation is bounded to be no greater than 108 GeV. We construct an N = 1 supergravity model with realistic fermion masses and mixings in which D = 5 operators are suppressed by a Peccei-Quinn symmetry. We compute the ensuing proton decay and show that the dominant modes involve strange particles in the final state. Efficient baryogenesis is induced by Higgs decay to massive right-handed neutrinos and we find an upper bound on the proton lifetime if the Higgs are light enough to be reheated.
Work supported in part by CNPq, Brazil.

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