Neutrinos in flat extra dimension: towards a realistic scenario | Zendy

Asmâa Abada | Zendy; Paramita Dey | Zendy; G. Moreau | Zendy

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Neutrinos in flat extra dimension: towards a realistic scenario

Author(s) -

Asmâa Abada,

Paramita Dey,

G. Moreau

Publication year - 2007

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2007/09/006

Subject(s) - leptogenesis , neutrino , physics , particle physics , extra dimensions , dimension (graph theory) , brane , sterile neutrino , standard model (mathematical formulation) , physics beyond the standard model , orbifold , neutrino oscillation , theoretical physics , lepton , nuclear physics , mathematics , gauge (firearms) , pure mathematics , archaeology , history , electron

We consider the simple extension of the Standard Model in which an additionalright handed neutrino propagates along a flat extra dimension, while theStandard Model fields are confined on a 3-brane. The fifth dimension is$S^1/Z_2$ orbifold compactified. In this scenario, the neutrino mass can benaturally suppressed. By studying systematically the fundamental parameterspace, we show that the strong phenomenological constraints on mixing anglesbetween active and sterile neutrinos (especially those derived from the SNOexperiment data) do not conflict with the possibility of generating a realisticneutrino mass spectrum. As a second step, we explore the possibility of asuccessful leptogenesis through the decays of the Kaluza-Klein excitations ofthe right handed neutrino.Comment: 16 pages, 2 ps figure

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