arXiv:0705.3736·v3·High Energy Physics — Phenomenology
Dirac Neutrinos, Dark Energy and Baryon Asymmetry
Pei-Hong Gu🇮🇹 · Hong-Jian He🇨🇳 · Utpal Sarkar🇮🇳
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.
Comments: 6 pages, 1 figure. Accepted by JCAP (only minor rewordings, refs added)