Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-04-26
Phys. Rev. D 81, 116006 (2010)
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, 7 figures. Final version published in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.81.116006
We perform a detailed study of the renormalization group equations in the inverse seesaw model. Especially, we derive compact analytical formulas for the running of the neutrino parameters in the standard model and the minimal supersymmetric standard model, and illustrate that, due to large Yukawa coupling corrections, significant running effects on the leptonic mixing angles can be naturally obtained in the proximity of the electroweak scale, perhaps even within the reach of the LHC. In general, if the mass spectrum of the light neutrinos is nearly degenerate, the running effects are enhanced to experimentally accessible levels, well suitable for the investigation of the underlying dynamics behind the neutrino mass generation and the lepton flavor structure. In addition, the effects of the seesaw thresholds are discussed, and a brief comparison to other seesaw models is carried out.
Bergstrom Johannes
Malinsky Michal
Ohlsson Tommy
Zhang He
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