期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP03(2012)023
关键词
Phenomenological Models
资金
- NSC [100-2811-M-002-089]
- NCTS
- NNSF
- SJTU
We study implications of recent data on neutrino mixing from T2K, MINOS, Double Chooz and mu -> e gamma from MEG for the Zee model. The simplest version of this model has been shown to be ruled out by experimental data some time ago. The general Zee model is still consistent with recent data. We demonstrate tins with a constrained Zee model based on naturalness consideration. In this constrained model, only inverted mass hierarchy for neutrino masses is allowed. and theta(13) must be non-zero in order to have correct ratio for neutrino mass-squared differences and for mixing in solar and atmospherical neutrino oscillations. The best-fit value of our model for theta(13) is 8.91 degrees from T2K and,MINOS data, very close to the central value obtained by Double Chooz experiment. There are solutions with non-zero CP violation with the Jarlskog parameter predicted in the range +/- 0.039, +/- 0.044 and +/- 0.048 respectively for a 1 sigma, 2 sigma and 3 sigma ranges of other input parameters. However, without any constraint on the theta(13)-parameter above respective ranges become +/- 0.049, +/- 0.053 and +/- 0.056. We analyse different cases to obtain a branching ratio for mu -> e gamma close to the recent MEG bound. We also discuss other radiative as well as the charged trilepton flavour violating decay modes of the tau-lepton.
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