Limits on the neutron-antineutron oscillation time from the stability of nuclei

Abstract

We refute a recent claim by Nazaruk that the limits placed on the free--space neutron--antineutron oscillation time ${\tau }_{n\bar{n}}$ can be improved by many orders of magnitude with respect to the estimate ${\tau }_{n\bar{n}}>2(T_0/\Gamma {)}^{1/2}$, where $T_0$ is a measured limit on the annihilation lifetime of a nucleus and $\Gamma \sim 100$ MeV is a typical antineutron-nucleus annihilation width.

4 pages, Latex, submitted to Physics Letters B

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• Lindblad and Bloch equations for conversion of a neutron into an antineutron
• Restriction on the Neutron-Antineutron Oscillations from the SNO Data on the Deuteron Stability
• Critical Examination of the "Field-Theoretical Approach" to the Neutron-Antineutron Oscillations in Nuclei