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arXiv · hep-ph/0103229

Leptogenesis in Smooth Hybrid Inflation

R. Jeannerot·S. Khalil·G. Lazarides
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Abstract

We present a concrete supersymmetric grand unified model based on the Pati-Salam gauge group SU(4)_c x SU(2)_L x SU(2)_R and leading naturally to smooth hybrid inflation, which avoids the cosmological disaster encountered in the standard hybrid inflationary scenario from the overproduction of monopoles at the end of inflation. Successful `reheating' which satisfies the gravitino constraint takes place after the termination of inflation. Also, adequate baryogenesis via a primordial leptogenesis occurs consistently with the solar and atmospheric neutrino oscillation data as well as the SU(4)_c symmetry.

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R. Jeannerot, S. Khalil, G. Lazarides. 2001-04-16. Leptogenesis in Smooth Hybrid Inflation. https://doi.org/10.1016/s0370-2693(01)00429-4

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