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arXiv · hep-ph/9311326

Chaotic Inflation and Baryogenesis in Supergravity

Hitoshi Murayama·Hiroshi Suzuki·T. Yanagida·Jun'ichi Yokoyama
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Abstract

We propose a Kähler potential in supergravity which successfully accommodates chaotic inflation. This model can have a large gravitino mass without giving a large mass to squarks and sleptons, and thus is free from both the gravitino problem and entropy crisis. In this model baryogenesis takes place naturally, identifying the inflaton with a right-handed sneutrino with its mass $M \simeq 10^{13}$GeV, which is consistent with the COBE data and the Mikheyev--Smirnov--Wolfenstein solution to the solar neutrino problem. The model can also accommodate the matter content appropriate for the mixed dark matter scenario.

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Hitoshi Murayama, Hiroshi Suzuki, T. Yanagida, Jun'ichi Yokoyama. 1993-11-21. Chaotic Inflation and Baryogenesis in Supergravity. https://doi.org/10.1103/physrevd.50.r2356

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