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arXiv · 0908.2158

A new strategy for probing the Majorana neutrino CP violating phases and masses

David Delepine·Vannia Gonzalez Macias·Shaaban Khalil·Gabriel Lopez Castro
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Abstract

We propose a new strategy for detecting the CP-violating phases and the effective mass of muon Majorana neutrinos by measuring observables associated with neutrino-antineutrino oscillations in $π^{\pm}$ decays. Within the generic framework of quantum field theory, we compute the non-factorizable probability for producing a pair of same-charged muons in $π^{\pm}$ decays as a distinctive signature of $ν_μ-\bar{ν_μ}$ oscillations. We show that an intense neutrino beam through a long baseline experiment is favored for probing the Majorana phases. Using the neutrino-antineutrino oscillation probability reported by MINOS collaboration, a new stringent bound on the effective muon-neutrino mass is derived.

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David Delepine, Vannia Gonzalez Macias, Shaaban Khalil, Gabriel Lopez Castro. 2009-08-15. A new strategy for probing the Majorana neutrino CP violating phases and masses. https://doi.org/10.1063/1.3622737

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