| Article | |
| Report number | hep-ph/0312244 |
| Title | Degenerate neutrinos from a supersymmetric A$_{4}$ model |
| Author(s) | Hirsch, M ; Romão, J C ; Skadhauge, S ; Valle, J W F ; Moral, A V |
| Affiliation | (CERN) |
| Publication | 2003 |
| Imprint | 17 Dec 2003 |
| Number of pages | 11 |
| In: | PoS AHEP2003 (2003) 010 |
| In: | International Workshop on Astroparticle and High Energy Physics, Valencia, Spain, 14 - 18 Oct 2003, pp.010 |
| DOI | 10.22323/1.010.0010 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | We investigate the supersymmetric A_4 model recently proposed by Babu, Ma and Valle. The model naturally gives quasi-degenerate neutrinos that are bi-largely mixed, in agreement with observations. Furthermore, the mixings in the quark sector are constrained to be small, making it a complete model of the flavor structure. Moreover, it has the interesting property that CP-violation in the leptonic sector is maximal (unless vanishing). The model exhibit a close relation between the slepton and lepton sectors and we derive the slepton spectra that are compatible with neutrino data and the present bounds on flavor-violating charged lepton decays. The prediction for the branching ratio of the decay tau -> mu gamma has a lower limit of 10^{-9}. In addition, the overall neutrino mass scale is constrained to be larger than 0.3 eV. Thus, the model will be tested in the very near future. |
| Copyright/License | CC-BY-NC-SA-3.0 |
Corresponding record in: Inspire
Email contact: solveig@cfif.ist.utl.pt
Notice créée le 2003-12-18, modifiée le 2018-09-24