Charged-lepton mass matrix and nonzero θ _(13) with TeV scale new physics

Rashed A.; Datta A.

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Charged-lepton mass matrix and nonzero θ _(13) with TeV scale new physics

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We provide an explicit structure of the charged-lepton mass matrix which is 2-3 symmetric except for a single breaking of this symmetry by the muon mass. We identify a flavor symmetric limit for the mass matrices where the first generation is decoupled from the other two in the charged-lepton sector while in the neutrino sector the third generation is decoupled from the first two generations. The leptonic mixing in the symmetric limit can be, among other structures, the bimaximal or the tri-bimaximal mixing. Symmetry breaking effects are included both in the charged-lepton and the neutrino sector to produce corrections to the leptonic mixing and explain the recent θ _(13) measurements. A model that extends the standard model by three right-handed neutrinos, an extra Higgs doublet, and two singlet scalars is introduced to generate the leptonic mixing.

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《Physical review, D. Particles, fields, gravitation, and cosmology》 |2012年第3期|035019-1-035019-14|共14页
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Rashed A.; Datta A.;
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Department of Physics and Astronomy, University of Mississippi, Lewis Hall, University, MS 38677, United States;

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正文语种英语
中图分类粒子物理学;
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Charged-lepton mass matrix and nonzero θ _(13) with TeV scale new physics

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