Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-11-03
Electron.J.Theor.Phys.6:175-186,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 Pages
Scientific paper
Neutrino mixing lead to a non zero contribution to the cosmological constant. We consider non renormalization $1/M_{x}$ interaction term as a perturbation of the neutrino mass matrix. We find that for the degenerate neutrino mass spectrum. We assume that the neutrino masses and mixing arise through physics at a scale intermediate between Planck Scale and the electroweak scale. We also assume, above the electroweak breaking scale, neutrino masses are nearly degenerate and their mixing is bimaximal. Quantum gravitational (Planck scale )effects lead to an effective $SU(2)_{L}\times U(1)$ invariant dimension-5 Lagrangian involving neutrino and Higgs fields, which gives rise to additional terms in neutrino mass matrix. There additional term can be considered to be perturbation of the GUT scale bi-maximal neutrino mass matrix. We assume that the gravitational interaction is flavour blind and we study the neutrino mixing and cosmological constant due to physics above the GUT scale.
No associations
LandOfFree
Neutrino Mixing and Cosmological Constant above GUT Scale does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Neutrino Mixing and Cosmological Constant above GUT Scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutrino Mixing and Cosmological Constant above GUT Scale will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-256204