Radiative neutrino mass generation and dark energy
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We study the models with radiative neutrino mass generation and explore the relation between the neutrino masses and dark energy. In these models, the pseudo-Nambu-Goldston bosons (pNGBs) arise at two-loop level via the Majorana neutrino masses. In particular, we demonstrate that the potential energy of the pNGB can be the dark energy potential and the observed value of the equation of state (EoS) parameter of the universe, $i.e.$, $w\simeq -1$, can be realized.
10 pages, 1 figure, a minor correction in Eq. (17)
10 pages, 1 figure, a minor correction in Eq. (17)