Spin of protons in NICA and PTR storage rings as an axion antenna

TL;DR

This paper proposes a novel method using proton spin dynamics in storage rings to detect axions, leveraging short polarization coherence times and hybrid electric-magnetic bending to broaden the detectable axion mass range.

Contribution

It introduces a new axion search technique applicable to existing storage rings with internal polarimeters, expanding the potential mass range for detection.

Findings

Method applicable to rings like COSY, NICA, PTR

Potential for broadening axion mass detection range

Feasibility demonstrated for hybrid electric-magnetic bending rings

Abstract

We discuss a new approach to search for axions in the storage ring experiments, applicable at short coherence time of the in-plane polarization as is the case for protons. The technique can readily be applied at any storage ring equipped with internal polarimeter for the radial polarization of the beam (COSY, NICA, PTR). We point out a possibility of substantial broadening of the range of attianable axion masses in storage rings with the hybrid electric and magnetic bending, the PTR proton storage ring being an example.