Experimental limits on neutron disappearance into another braneworld

TL;DR

This paper explores the potential for neutrons to vanish into a parallel universe due to magnetic effects, using experimental data to set limits and suggest future improvements for detection.

Contribution

It provides the first experimental upper limit on neutron disappearance into a braneworld and discusses how to improve detection methods.

Findings

Established an upper limit for neutron disappearance probability

Constrained parameters of the braneworld model based on experimental data

Suggested experimental enhancements for future detection

Abstract

Recent theoretical works have shown that matter swapping between two parallel braneworlds could occur under the influence of magnetic vector potentials. In our visible world, galactic magnetism possibly produces a huge magnetic potential. As a consequence, this paper discusses the possibility to observe neutron disappearance into another braneworld in certain circumstances. The setup under consideration involves stored ultracold neutrons - in a vessel - which should exhibit a non-zero probability p to disappear into an invisible brane at each wall collision. An upper limit of p is assessed based on available experimental results. This value is then used to constrain the parameters of the theoretical model. Possible improvements of the experiments are discussed, including enhanced stimulated swapping by artificial means.