Dirac Neutrinos, Dark Energy and Baryon Asymmetry
arXiv:0705.3736 · doi:10.1088/1475-7516/2007/11/016
Abstract
We explore a new origin of neutrino dark energy and baryon asymmetry in the universe. The neutrinos acquire small masses through the Dirac seesaw mechanism. The pseudo-Nambu-Goldstone boson associated with neutrino mass-generation provides a candidate for dark energy. The puzzle of cosmological baryon asymmetry is resolved via neutrinogenesis.
6 pages, 1 figure. Accepted by JCAP (only minor rewordings, refs added)