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

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

2009-08-15

arxiv.org/abs/0908.2158v1

AIP Conf.Proc.1361:395-397,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure

Scientific paper

10.1063/1.3622737

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 $\pi^{\pm}$ decays. Within the generic framework of quantum field theory, we compute the non-factorizable probability for producing a pair of same-charged muons in $\pi^{\pm}$ decays as a distinctive signature of $\nu_{\mu}-\bar{\nu_{\mu}}$ 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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