On the critical examination of the "field-theoretical approach" to the neutron-antineutron oscillations in nuclei

TL;DR

This paper critically examines the field-theoretical approach to neutron-antineutron oscillations in nuclei, analyzing a specific 1992 model and its recent re-evaluation, highlighting potential issues or limitations.

Contribution

It provides a critical analysis of the existing field-theoretical models for neutron-antineutron oscillations in nuclei, focusing on a historically significant calculation.

Findings

The 1992 diagram-based calculation is scrutinized for accuracy.

Recent re-evaluation by Kopeliovich and Potashnikova is analyzed.

The paper discusses potential limitations of the field-theoretical approach.

Abstract

We briefly outline the models of the $n\bar{n}$ transition in nuclei and analyse a well known calculation based on diagram technique published in 1992 and repeated recently by V. Kopeliovich and I. Potashnikova.