Restriction on the Neutron-Antineutron Oscillations from the SNO Data on the Deuteron Stability

TL;DR

This paper derives a new lower bound on neutron-antineutron oscillation time using SNO data on deuteron stability, employing quantum field theory calculations that align with previous potential approach results.

Contribution

It provides a novel restriction on neutron-antineutron oscillations based on recent experimental data, using a quantum field theory framework that confirms earlier potential model findings.

Findings

Lower bound on neutron-antineutron oscillation time: >3.01×10^{31} years

Quantum field theory calculations agree with potential approach results

Dependence of restrictions on spin states and wave function modifications

Abstract

Restriction on the neutron-antineutron oscillation time in vacuum is obtained from latest SNO data on the deuteron stability, $\tau_D\,>\,3.01^.10^{31}$ years. Calculation performed within the quantum field theory based diagram technique reproduces satisfactorily results of the potential approach previously developed. The dependence of the obtained restriction on the total spin of the annihilating $N\bar N$ system and the deuteron wave function modifications is discussed.