Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/3596
Título: Leptogenesis, CP violation and neutrino data: what can we learn?
Autor: Branco, G. C.
Felipe, R. G.
Joaquim, F. R.
Rebelo, M. N.
Palavras-chave: Realistic String Model
Super-Kamiokande Data
Double-Beta Decay
SO(10) Grand Unification
Oscillation Experiments
Baryon Asymmetry
Mass Matrices
Majorana Neutrinos
Number Violation
Data: 23-Set-2002
Editora: Elsevier Science BV
Citação: BRANCO, G. C.; FELIPE, R. G.; JOAQUIM, F. R.; REBELO, M. N. - Leptogenesis, CP violation and neutrino data: what can we learn?. Nuclear Physics B. ISSN 0550-3213. Vol. 640, nr. 1-2 (2002), p. 202-232.
Relatório da Série N.º: ;PII S0550-3213(02)00478-9
Resumo: A detailed analytic and numerical study of baryogenesis through leptogenesis is performed in the framework of the standard model of electroweak interactions extended by the addition of three right-handed neutrinos, leading to the seesaw mechanism. We analyze the connection between GUT-motivated relations for the quark and lepton mass matrices and the possibility of obtaining a viable leptogenesis scenario. In particular, we analyze whether the constraints imposed by SO(10) GUTs can be compatible with all the available solar, atmospheric and reactor neutrino data and, simultaneously, be capable of producing the required baryon asymmetry via the leptogenesis mechanism. It is found that the Just-So(2) and SMA solar solutions lead to a viable leptogenesis even for the simplest SO(10) GUT, while the LMA, LOW and VO solar solutions would require a different hierarchy for the Dirac neutrino masses in order to generate the observed baryon asymmetry. Some implications on CP violation at low energies and on neutrinoless double beta decay are also considered. (C) 2002 Elsevier Science B.V. All rights reserved.
Peer review: yes
URI: http://hdl.handle.net/10400.21/3596
ISSN: 0550-3213
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0550321302004789
Aparece nas colecções:ISEL - Física - Artigos

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