Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-06-24
Eur.Phys.J.C14:347-365,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
37 pages, 24 figures, 6 tables
Scientific paper
10.1007/s100520000333
Recent neutrino experiments suggest the strong evidences of tiny neutrino masses and the lepton-flavor mixing. Neutrino-oscillation solutions for the atmospheric neutrino anomaly and the solar neutrino deficit can determine the texture of neutrino mass matrix according to the neutrino mass hierarchies as Type A: m_3 \gg m_2 \sim m_1, Type B: m_3 \ll m_2 \sim m_1, and Type C: m_3 \sim m_2 \sim m_1. In this paper we study the stability of the lepton-flavor mixing matrix against quantum corrections for all types of mass hierarchy in the minimal supersymmetric Standard Model with the effective dimension-five operator which gives Majorana masses of neutrinos. The relative sign assignments of neutrino masses in each type play the crucial roles for the stability against quantum corrections. We find the lepton-flavor mixing matrix of Type A is stable against quantum corrections, and that of Type B with the same (opposite) signs of m_1 and m_2 are unstable (stable). For Type C, the lepton-flavor-mixing matrix approaches to the definite unitary matrix according to the relative sign assignments of neutrino mass eigenvalues, as the effects of quantum corrections become large enough to neglect squared mass differences of neutrinos.
Haba Naoyuki
Okamura Naotoshi
No associations
LandOfFree
Stability of the Lepton-Flavor Mixing Matrix Against Quantum Corrections does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stability of the Lepton-Flavor Mixing Matrix Against Quantum Corrections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stability of the Lepton-Flavor Mixing Matrix Against Quantum Corrections will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-430211