Neutron–antineutron oscillation and baryonic majoron: low scale spontaneous baryon violation

We discuss the possibility that baryon number B is spontaneously broken at low scales, of the order of MeV or even smaller, inducing the neutron–antineutron oscillation at the experimentally accessible level. An associated Goldstone particle–baryonic majoron can have observable effects in neutron to...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2016-12, Vol.76 (12), p.1-10, Article 705
Main Author: Berezhiani, Zurab
Format: Article
Language:English
Subjects:
Antiparticles
Astronomy
Astrophysics and Cosmology
Baryons
Beta decay
Elementary Particles
Hadrons
Heavy Ions
Leptons
Measurement Science and Instrumentation
Neutrons
Nuclear Energy
Nuclear matter
Nuclear Physics
Nuclei (nuclear physics)
Physics
Physics and Astronomy
Quantum chromodynamics
Quantum Field Theories
Quantum Field Theory
Quarks
Regular Article - Theoretical Physics
String Theory
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Summary:We discuss the possibility that baryon number B is spontaneously broken at low scales, of the order of MeV or even smaller, inducing the neutron–antineutron oscillation at the experimentally accessible level. An associated Goldstone particle–baryonic majoron can have observable effects in neutron to antineutron transitions in nuclei or dense nuclear matter. By extending baryon number to an anomaly-free B - L symmetry, the baryo-majoron can be identified with the ordinary majoron associated with the spontaneous breaking of lepton number, and it can have interesting implications for neutrinoless 2 β decay with the majoron emission. We also discuss the hypothesis that baryon number can be spontaneously broken by QCD itself via the six-quark condensates.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-016-4564-0