Fine-tuning and naturalness issues in the two-zero neutrino mass textures
| Autor: | Blankenburg, G., Meloni, D. |
|---|---|
| Rok vydání: | 2012 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.nuclphysb.2012.10.011 |
| Popis: | In this paper we analyze the compatibility of two-zero neutrino Majorana textures with the recent experimental data. Differently from previous works, we use the experimental data to fix the values of the non-vanishing mass matrix entries and study in detail the correlations and degree of fine-tuning among them, which is also a measure of how naturally a given texture is able to describe all neutrino data. This information is then used to expand the textures in powers of the Cabibbo angle; extracting random O(1) coefficients, we show that only in few cases such textures reproduce the mixing parameters in their 3 sigma ranges. Comment: 13 pages, 14 figures. Version to appear in NPB |
| Databáze: | arXiv |
| Externí odkaz: |
|