Neutrino oscillations beyond the Standard Model

Abstract

We address the possible impact of New Physics on neutrino oscillation experiments. This can modify the neutrino production, propagation and/or detection, making the full cross section non-factorizable in general. Thus, for example, the neutrino flux may not be properly described assuming an unitary MNS matrix and/or neutrinos may propagate differently depending of their Dirac or Majorana character. Interestingly enough, present limits on New Physics still allow for observable effects at future neutrino experiments.

2 pages, 2 figures, Presented at the Neutrino 08 Conference, Christchurch, New Zealand, May 25-31, 2008