Affleck-Dine Leptogenesis with AN Ultralight Neutrino

Details Affleck-Dine Leptogenesis with AN Ultralight Neutrino Affleck-Dine Leptogenesis with AN Ultralight Neutrino

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cosm.conf..384h&link_type=abstract

COSMO-2000 . Proceedings of the Fourth International Workshop on Particle Physics and the Early Universe . Held 4-8 September 20

Physics

Scientific paper

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.

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