More on a possible energy dependence of Theta_13 in vacuum neutrino oscillations

Abstract

Vacuum neutrino-oscillation probabilities from a simple three-flavor model with both mass-square differences and timelike Fermi-point splittings have been presented in a previous article [hep-ph/0504274]. Here, further results are given: first, for specific parameters relevant to MINOS in the low-energy mode and, then, for arbitrary parameters. A generalized model with equidistant Fermi-point splittings and an additional complex phase is also discussed. If relevant, this generalized model might have interesting effects at future long-baseline oscillation experiments.