$n\bar{n}$ transitions in medium

TL;DR

This paper investigates neutron-antineutron ($nar{n}$) transitions in medium using unitary $S$-matrix models, analyzing their time dependence, corrections, and establishing lower bounds on oscillation time in free space.

Contribution

It introduces refined models of $nar{n}$ transitions in medium based on the unitary $S$-matrix and provides new lower limits on free-space oscillation time.

Findings

Models based on unitary $S$-matrix are developed and analyzed.

Time dependence and corrections to the models are studied.

Lower bounds on free-space $nar{n}$ oscillation time are established.

Abstract

The models of $n\bar{n}$ transitions in the medium based on unitary $S$-matrix are considered. The time-dependence and corrections to the models are studied. The lower limits on the free-space $n\bar{n}$ oscillation time are obtained as well.