Neutron-antineutron Oscillation and Baryonic Majoron: Low Scale Spontaneous Baryon Violation

Abstract

We discuss a possibility that baryon number $B$ is spontaneously broken at low scales, of the order of MeV or even smaller, so that the neutron-antineutron oscillation can be induced 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 $B-L$ symmetry, baryo-majoron can be identified with the ordinary majoron associated with the spontaneous breaking of lepton number, with interesting implications for neutrinoless $2\beta$ becay with the majoron emission, etc. We also discuss a hypothesis suggesting that baryon number maybe spontaneously broken by the QCD itself via the six-quark condensates.

8 pages, 5 figures

References in corpus (8)

• Neutron -- Mirror Neutron Oscillation: How Fast Might It Be?
• Search for New Phenomena in Dijet Mass and Angular Distributions from $pp$ Collisions at $\sqrt{s}$ = 13 TeV with the ATLAS Detector
• Experimental search for neutron - mirror neutron oscillations using storage of ultracold neutrons
• Limits on Majoron-emitting double-beta decays of Xe-136 in the KamLAND-Zen experiment
• More about neutron - mirror neutron oscillation
• A direct experimental limit on neutron -- mirror neutron oscillations
• Fast Neutron - Mirror Neutron Oscillation and Ultra High Energy Cosmic Rays
• Neutron to Mirror-Neutron Oscillations in the Presence of Mirror Magnetic Fields

Cited by in corpus (33)

• Neutron lifetime puzzle and neutron -- mirror neutron oscillation
• New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
• New experimental limits on neutron - mirror neutron oscillations in the presence of mirror magnetic field
• The search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory
• Neutron - mirror neutron mixing and neutron stars
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Particle Physics at the European Spallation Source
• Neutron Disappearance and Regeneration from Mirror State
• Hydrogen portal to exotic radioactivity
• Cosmological and astrophysical probes of dark baryons
• A new operating mode in experiments searching for free neutron-antineutron oscillations based on coherent neutron and antineutron mirror reflections
• Coloured Scalar Mediated Nucleon Decays to Invisible Fermion
• A possible shortcut for neutron-antineutron oscillation through mirror world
• Gauged B-L Number and Neutron--Antineutron Oscillation: Long-range Forces Mediated by Baryophotons
• Testing Dark Matter Models with Radio Telescopes in light of Gravitational Wave Astronomy
• Two-field cosmological phase transitions and gravitational waves in the singlet Majoron model
• On the Neutron Transition Magnetic Moment
• Theoretical Analysis of Antineutron-Nucleus Data needed for Antineutron Mirrors in Neutron-Antineutron Oscillation Experiments
• Quantum Field Theory of Particle Oscillations: Neutron-Antineutron Conversion
• Limiting Majoron self-interactions from Gravitational waves experiments
• A new approach to search for free neutron-antineutron oscillations using coherent neutron propagation in gas
• Neutron-antineutron oscillations beyond the quasi-free limit
• Leptoquarks, axions and the unification of B, L, and Peccei-Quinn symmetries
• The HIBEAM Instrument at the European Spallation Source
• A search for neutron to mirror neutron oscillation using neutron electric dipole moment measurements
• Statistical sensitivity of the nEDM apparatus at PSI to neutron mirror-neutron oscillations
• High-scale baryogenesis with testable neutron-antineutron oscillation and dark matter
• Monte Carlo simulation for Ultra-cold neutron experiments searching for neutron - mirror neutron oscillation
• RG evolution and effect of intermediate new physics on $\Delta B=2$ six-quark operators
• Super-light baryphotons, Weak Gravity Conjecture and Exotic instantons in Neutron-Antineutron transitions
• A New Model of Intranuclear Neutron-Antineutron Transformations in ${}_8^{16}$O
• Neutron-neutral particle mixing and its observable consequences
• Assisted baryon number violation from $4k+2$ dimensions