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Neutrino Democracy, Fermion Mass Hierarchies And Proton Decay From 5D SU(5)

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Published Article
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DOI: 10.1103/PhysRevD.67.075007
arXiv ID: hep-ph/0210181
Source
arXiv
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Abstract

The explanation of various observed phenomena such as large angle neutrino oscillations, hierarchies of charged fermion masses and CKM mixings, and apparent baryon number conservation may have a common origin. We show how this could occur in 5D SUSY SU(5) supplemented by a ${\cal U}(1)$ flavor symmetry and additional matter supermultiplets called 'copies'. In addition, the proton decays into $p\to K\nu $, with an estimated lifetime of order $10^{33}-10^{36}$ yrs. Other decay channels include $Ke$ and $K\mu $ with comparable rates. We also expect that BR$(\mu \to e\gamma)\sim $BR$(\tau \to \mu \gamma)$.

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