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Predictions on the neutrinoless double beta decay from the leptogenesis via the LHu flat direction

Masaaki Fujii·K. Hamaguchi·T. Yanagida
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Abstract

If the baryon asymmetry in the present universe is generated by decays of the $L H_u$ flat direction, the observed baryon asymmetry requires the mass of the lightest neutrino to be much smaller than the mass scale indicated from the atmospheric and solar neutrino oscillations. Such a small mass of the lightest neutrino leads to a high predictability on the rate of the neutrinoless double beta ($0νββ$) decay. In this letter we show general predictions on the $0νββ$ decay in the leptogenesis via the $LH_u$ flat direction.

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Masaaki Fujii, K. Hamaguchi, T. Yanagida. 2002-03-20. Predictions on the neutrinoless double beta decay from the leptogenesis via the LHu flat direction. https://doi.org/10.1016/s0370-2693(02)01963-9

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