Leptogenesis, Dark Energy, Dark Matter and the neutrinos

Details Leptogenesis, Dark Energy, Dark Matter and the neutrinos Leptogenesis, Dark Energy, Dark Matter and the neutrinos

2007-12-17

arxiv.org/abs/0712.2675v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk appeared in International Workshop in Theoretical High Energy Physics, ed. A. Misra, AIP Conf. Proc. 939 (2007) 1

Scientific paper

10.1063/1.2803796

In this review we discuss how the models of neutrino masses can accommodate solutions to the problem of matter-antimatter asymmetry in the universe, dark energy or cosmological constant problem and dark matter candidates. The matter-antimatter asymmetry is explained by leptogenesis, originating from the lepton number violation associated with the neutrino masses. The dark energy problem is correlated with a mass varying neutrinos, which could originate from a pseudo-Nambu-Goldstone boson. In some radiative models of neutrino masses, there exists a Higgs doublet that does not acquire any vacuum expectation value. This field could be inert and the lightest inert particle could then be a dark matter candidate. We reviewed these scenarios in connection with models of neutrino masses with right-handed neutrinos and with triplet Higgs scalars.

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