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Title

Decaying warm dark matter and neutrino masses

AuthorsLattanzi, Massimiliano; Valle, José W. F. CSIC ORCID
KeywordsLarge-scale structure
Massive neutrinos
Lepton number
Cosmology
Cosmic background radiation
Majoron
Dark matter
Quantum gravity
Issue Date20-Sep-2007
PublisherAmerican Physical Society
CitationPhysical Review Letters 99(12): 121301 (2007)
AbstractNeutrino 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. The majoron decaying dark matter scenario fits nicely in models where neutrino masses arise via the seesaw mechanism, and may lead to other possible cosmological implications.
Description4 pages, 3 figures.-- PACS nrs.: 95.35.+d; 14.60.Pq; 14.80.Mz; 98.70.Vc.-- ISI Article Identifier: 000249668000018.-- ArXiv pre-print available at: http://arxiv.org/abs/0705.2406
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.99.121301
URIhttp://hdl.handle.net/10261/9210
DOI10.1103/PhysRevLett.99.121301
ISSN0031-9007
Appears in Collections:(IFIC) Artículos




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