Determining Majorana Nature of Neutrino from Nucleon Decays and n-nbar oscillations

Abstract

We show that discovery of baryon number violation in two processes with at least one obeying the selection rule Δ(B-L) = \pm 2 can determine the Majorana character of neutrinos. Thus observing p \to e^+ π^0 and n \to e^- π^0 decays, or p \to e^+ π^0 and n-nbar oscillations, or n \to e^- π^+ and n-nbar oscillations would establish that neutrinos are Majorana particles. We discuss this in a model-independent effective operator approach.

arXiv comment9 pages Latex, 11 figures

References in corpus (13)

• Theory of neutrinoless double beta decay
• Results on neutrinoless double beta decay of 76Ge from GERDA Phase I
• Letter of Intent: The Hyper-Kamiokande Experiment --- Detector Design and Physics Potential ---
• Neutrinoless double beta decay and neutrino physics
• Two-loop Neutrino Mass Generation and its Experimental Consequences
• On the Quantitative Impact of the Schechter-Valle Theorem
• Search for n-nbar oscillation in Super-Kamiokande
• Neutrino Masses, Grand Unification, and Baryon Number Violation
• B-L Violating Proton Decay Modes and New Baryogenesis Scenario in SO(10)
• Baryon Number Violation
• Baryon Number Violating Scalar Diquarks at the LHC
• B-L Violating Nucleon Decay and GUT Scale Baryogenesis in SO(10)
• Observable Proton Decay from Planck Scale Physics

Cited by in corpus (9)

• Colloquium: Majorana Fermions in nuclear, particle and solid-state physics
• New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
• CP Violating Baryon Oscillations
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Processes that break baryon number by two units and the Majorana nature of the neutrino
• Phenomenology of neutron-antineutron conversion
• From Old Symmetries to New Symmetries: Quarks, Leptons and B-L
• Neutron-antineutron oscillations beyond the quasi-free limit
• Baryon number violating hydrogen decay