Limits on short-range spin-dependent force from spin relaxation of polarized He-3

TL;DR

This paper establishes new constraints on short-range spin-dependent forces, specifically axionlike monopole-dipole couplings, by analyzing spin relaxation data of polarized helium-3 within a specific distance range.

Contribution

It provides the first limits on axionlike monopole-dipole interactions in the 10^{-4} to 1 cm range using helium-3 relaxation data.

Findings

New limits on axionlike monopole-dipole coupling strength

Constraints within the 10^{-4} to 1 cm interaction range

Utilizes existing helium-3 spin relaxation measurements

Abstract

A new limit is presented on the axionlike P,T-noninvariant monopole-dipole coupling in a range (10^{-4} - 1) cm from existing data on the relaxation of spin-polarized He-3.