Phenomenology of neutron-antineutron conversion

Abstract

We consider the possibility of neutron-antineutron ($n-\bar{n}$) conversion, in which the change of a neutron into an antineutron is mediated by an external source, as can occur in a scattering process. We develop the connections between $n-\bar{n}$ conversion and $n-\bar{n}$ oscillation, in which a neutron spontaneously tranforms into an antineutron, noting that if $n-\bar{n}$ oscillation occurs in a theory with B-L violation, then $n-\bar{n}$ conversion can occur also. We show how an experimental limit on $n-\bar{n}$ conversion could connect concretely to a limit on $n-\bar{n}$ oscillation, and vice versa, using effective field theory techniques and baryon matrix elements computed in the M.I.T. bag model.

arXiv comment19 pages, REVTeX, 3 figures; typos fixed and minor clarifications and refs. added

References in corpus (23)

• Neutron-Antineutron Oscillations: Theoretical Status and Experimental Prospects
• Simplified models with baryon number violation but no proton decay
• Search for n-nbar oscillation in Super-Kamiokande
• Parity-violating Electron Deuteron Scattering and the Proton's Neutral Weak Axial Vector Form Factor
• Post-Sphaleron Baryogenesis and an Upper Limit on the Neutron-Antineutron Oscillation Time
• Neutrino Mass Hierarchy and neutron-anti-neutron Oscillation from Baryogenesis
• Coupling Unification, GUT-Scale Baryogenesis and Neutron-Antineutron Oscillation in SO(10)
• Realistic calculations of nuclear disappearance lifetimes induced by neutron-antineutron oscillations
• The search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory
• Observable Neutron-Antineutron Oscillations in Seesaw Models of Neutrino Mass
• Search for dinucleon decay into pions at Super-Kamiokande
• On the Search for Time Reversal Invariance Violation in Neutron Transmission
• Supersymmetric $SU(2{)}_L\times SU(2{)}_R\times SU(4{)}_c$ and observable neutron-antineutron oscillation
• LHC constraints on color octet scalars
• Study of $Λ- \Lambdabar$ Oscillation in quantum coherent $Λ\Lambdabar$ state by using J/ψ\to Λ\barΛ$ decay
• CPT, CP, and C transformations of fermions, and their consequences, in theories with B-L violation
• Neutron-Antineutron Oscillation as a Signal of CP Violation
• Parity-doublet representation of Majorana fermions and neutron oscillation
• Phenomenology of $n$-$\bar{n}$ Oscillations Revisited
• Determining Majorana Nature of Neutrino from Nucleon Decays and n-nbar oscillations
• Restriction on the Neutron-Antineutron Oscillations from the SNO Data on the Deuteron Stability
• Measured Radiation and Background Levels During Transmission of Megawatt Electron Beams Through Millimeter Apertures
• Testing B-violating signatures from Exotic Instantons in future colliders

Cited by in corpus (12)

• The Role of Lattice QCD in Searches for Violations of Fundamental Symmetries and Signals for New Physics
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• A new operating mode in experiments searching for free neutron-antineutron oscillations based on coherent neutron and antineutron mirror reflections
• Neutron Decay to a Non-Abelian Dark Sector
• Improved Upper Limits on Baryon-Number Violating Dinucleon Decays to Dileptons
• Processes that break baryon number by two units and the Majorana nature of the neutrino
• Neutron-antineutron oscillations in the deuteron studied with $NN$ and $\bar{N}N$ interactions based on chiral effective field theory
• How Macroscopic Limits on Neutron Star Baryon Loss Yield Microscopic Limits on Non-Standard-Model Baryon Decay
• A new approach to search for free neutron-antineutron oscillations using coherent neutron propagation in gas
• $\Delta B=2$ neutron decay into antiproton mode $n\to \bar{p}{e}^{+}\nu (\bar{\nu })$
• Relativistic quantum bouncing particles in a homogeneous gravitational field
• Scientific Opportunities at the ARIEL Electron Linac