منابع مشابه
A Model for Neutrino Masses
I present a model for neutrino masses based on a hypothesis proposed by Friedberg and Lee. Invited talk presented at the IV International Workshop on Neutrino Oscillations, April 15-18 (2008) Venice, Italy 1 Prelude I am delighted to be giving a talk here in Italy on this very special day, April 15, Leonardo da Vinci’s birthday. Through my talk, I will turn to him for guidance and understanding...
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Now that we have assembled the pieces, we can write down the Standard Model Lagrangian. It consists of three gauge theories based on the groups SU(3) for color, SU(2) for weak charge, and U(1) for hypercharge, with three independent coupling constants g3, g2, and g1, and three gauge potentials: eight gluons, Gμ , A = 1, 2, . . . , 8, three weak bosons, W a μ , a = 1, 2, 3, and one Hyperon Bμ, w...
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Little Higgs models are formulated as effective theories with a cut-off of up to 100 times the electroweak scale. Neutrino masses are then a puzzle, since the usual see-saw mechanism involves a much higher scale that would introduce quadratic corrections to the Higgs mass parameter. We propose a model that can naturally accommodate the observed neutrino masses and mixings in Little Higgs scenar...
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The composite little Higgs model, a UV completion for the SU(5)/SO(5) little Higgs model, incorporates supersymmetry into strong gauge dynamics. We extend the study of flavor physics in the model, and find that it is similar to the bosonic technicolor model. Lepton flavor violations and neutrino mass matrix arise once R-parity violating superpotential is introduced to the model, as in the MSSM....
متن کاملMinimal Model for Neutrino Masses and Mixings
Working in the framework of three chiral neutrinos with Majorana masses, we investigate a scenario first realized in an explicit model by Zee: that the neutrino mass matrix is strictly off-diagonal in the flavor basis, with all its diagonal entries precisely zero. This CP-conserving ansatz leads to two relations among the three mixing angles (θ1, θ2, θ3) and two squared mass differences. We imp...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.74.077701