Hill, C. T. ; Mocioiu, I. ; Paschos, E. A. ; Sarkar, U. (2007) Neutrino phenomenology, dark energy and leptogenesis from pseudo-Nambu-Goldstone bosons Physics Letters B, 651 (2-3). pp. 188-194. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.physletb.2007.06.006
Abstract
We consider a model of dynamical neutrino masses via the see-saw mechanism. Nambu-Goldstone bosons (majorons) arise associated with the formation of the heavy right-handed majorana masses. These bosons then acquire naturally soft masses (become pNGB's) at loop level via the Higgs-Yukawa mass terms. These models, like the original neutrino pNGB quintessence schemes of the 1980's [1, 2] that proceed through the Dirac masses, are natural, have cosmological implications through mass varying neutrinos, long range forces, and provide a soft potential for dark energy. We further argue that these models can explain leptogenesis naturally through the decays of the right-handed neutrinos.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 45423 |
Deposited On: | 28 Jun 2011 05:29 |
Last Modified: | 18 May 2016 01:41 |
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