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AFFLECK-DINE LEPTOGENESIS WITH AN ULTRALIGHT NEUTRINO

    https://doi.org/10.1142/9789812799678_0035Cited by:0 (Source: Crossref)
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    Abstract:

    Leptogenesis with Affleck-Dine mechanism is investigated. We find that an extremely small mass for the neutrino mν ≲ 10-8 eV is required to obtain the desired baryon asymmetry in the present universe. We also propose a model to avoid such an ultralight neutrino, where the mass can be as large as 10-4 eV.