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http://dx.doi.org/10.1103/PhysRevLett.69.3269 | DOI Listing |
Phys Rev Lett
September 2007
Oxford Astrophysics, Denis Wilkinson Building, Keble Road, OX1 3RH, Oxford, United Kingdom.
Neutrino masses may arise from spontaneous breaking of ungauged lepton number. Because of quantum gravity effects the associated Goldstone boson - the majoron - will pick up a mass. We determine the lifetime and mass required by cosmic microwave background observations so that the massive majoron provides the observed dark matter of the Universe.
View Article and Find Full Text PDFPhys Rev D Part Fields
March 1994
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