Majorana neutrino textures from numerical considerations: the CP conserving case

Details Majorana neutrino textures from numerical considerations: the CP conserving case Majorana neutrino textures from numerical considerations: the CP conserving case

2006-04-22

arxiv.org/abs/hep-ph/0604193v2

Phys.Rev. D74 (2006) 033003

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 10 figures, changes in Section 2, some references added, to appear in PRD

Scientific paper

10.1103/PhysRevD.74.033003

Phenomenological bounds on the neutrino mixing matrix U are used to determine numerically the allowed range of real elements (CP conserving case) for the symmetric neutrino mass matrix Mn (Majorana case). For this purpose an adaptive Monte Carlo generator has been used. Histograms are constructed to show which forms of the neutrino mass matrix Mn are possible and preferred. We confirm results found in the literature which are based on analytical calculations, though a few differences appear. These cases correspond to some textures with two zeros. The results show that actually both normal and inverted mass hierarchies are still possible at 3 sigma confidence level.

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