Generalization of Friedberg-Lee Symmetry

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dc.creatorHuang, Chao-Shang
dc.creatorLi, Tianjun
dc.creatorLiao, Wei
dc.creatorZhu, Shou-Hua
dc.date2008-03-28
dc.date2008-08-14
dc.date.accessioned2026-07-07T12:14:20Z
dc.date.available2026-07-07T12:14:20Z
dc.descriptionWe study the possible origin of Friedberg-Lee symmetry. First, we propose the generalized Friedberg-Lee symmetry in the potential by including the scalar fields in the field transformations, which can be broken down to the FL symmetry spontaneously. We show that the generalized Friedberg-Lee symmetry allows a typical form of Yukawa couplings, and the realistic neutrino masses and mixings can be generated via see-saw mechanism. If the right-handed neutrinos transform non-trivially under the generalized Friedberg-Lee symmetry, we can have the testable TeV scale see-saw mechanism. Second, we present two models with the $SO(3)\times U(1)$ global flavour symmetry in the lepton sector. After the flavour symmetry breaking, we can obtain the charged lepton masses, and explain the neutrino masses and mixings via see-saw mechanism. Interestingly, the complete neutrino mass matrices are similar to those of the above models with generalized Friedberg-Lee symmetry. So the Friedberg-Lee symmetry is the residual symmetry in the neutrino mass matrix after the $SO(3)\times U(1)$ flavour symmetry breaking.
dc.description16 pages, no figure, version published in PRD
dc.identifierhttps://arxiv.org/abs/0803.4124
dc.identifierhttp://arxiv.org/abs/0803.4124
dc.identifierPhys.Rev.D78:013005,2008
dc.identifierdoi:10.1103/PhysRevD.78.013005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211159
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGeneralization of Friedberg-Lee Symmetry
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