English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/15673
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Fermion masses and mixings in a S-4 based model

AuthorsBazzocchi, Federica ; Merlo, Luca ; Morisi, Stefano
KeywordsHigh Energy Physics
Phenomenology (hep-ph)
Issue Date10-Mar-2009
PublisherElsevier
CitationNucl.Phys.B816:204-226,2009
AbstractIt has been recently claimed that the symmetry group S-4 yields to the Tri-bimaximal neutrino mixing in a "natural" way from the group theory point of view. Approving of this feature as an indication, we build a supersymmetric model of lepton and quark masses based on this family symmetry group. In the lepton sector, a correct mass hierarchy among the charged leptons is achieved together to a neutrino mass matrix which can be diagonalized by the Tri-bimaximal pattern. Our model results to be phenomenologically inequivalent with respect to other proposals based on different flavour groups but still predicting the Tri-bimaximal mixing. In the quark sector a realistic pattern for masses and mixing angles is obtained. The flavour structures of the mass matrices in both the sectors come from the spontaneously symmetry breaking of S4, due to several scalar fields, which get non-zero vacuum expectation values. A specific Vacuum alignment is required and it is shown to be a natural results of the minimization of the scalar potential and, moreover, to be stable under the corrections from the higher order terms. (C) 2009 Elsevier B.V. All rights reserved.
Description25 pages.-- ISI article identifier:000266145300008.-- ArXiv pre-print avaible at: http://arxiv.org/abs/0901.2086
Publisher version (URL)hhtp://dx.doi.org/10.1016/j.nuclphysb.2009.03.005
URIhttp://hdl.handle.net/10261/15673
DOI10.1016/j.nuclphysb.2009.03.005
ISSN0550-3213
Appears in Collections:(IFIC) Artículos
Files in This Item:
File Description SizeFormat 
bazzocchi.pdf716,43 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.