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D-term Inflation and Leptogenesis by Right-handed Sneutrino

Kenji Kadota·J. Yokoyama
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Abstract

We discuss a D-term inflation scenario where a right-handed sneutrino can be an inflaton field leading to a viable inflation and leptogenesis, with a minimal form of Kähler potential. The decay of an inflaton sneutrino can non-thermally create large enough lepton asymmetry. Its entropy production is also big enough to ameliorate the gravitino problem caused by too high a reheating temperature from the decay of a symmetry breaking field.

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Kenji Kadota, J. Yokoyama. 2006-01-10. D-term Inflation and Leptogenesis by Right-handed Sneutrino. https://doi.org/10.1103/physrevd.73.043507

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