Search for Spin-Dependent Short-Range Force Using Optically Polarized ${}^3$He Gas

Abstract

We propose a new method to detect short-range \textit{P-} and \textit{T-} violating interactions between nucleons, based on measuring the precession frequency shift of polarized ${}^3$He nuclei in the presence of an unpolarized mass. To maximize the sensitivity, a high-pressure ${}^3$He cell with thin glass windows (250 $\mu \mathrm{m}$) is used to minimize the distance between the mass and ${}^3$He. The magnetic field fluctuation is suppressed by using the ${}^3$He gas in a different region of the cell as a magnetometer. Systematic uncertainties from the magnetic properties of the mass are suppressed by flipping both the magnetic field and spin directions. Without any magnetic shielding, our result has already reached the sensitivity of the current best limit. With improvement in uniformity and stability of the field, we can further improve the sensitivity by two orders of magnitude over the force range from $10^{-4}-10^{-2}$ m.

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Cited by in corpus (6)

• A Laboratory Search for a Long-Range T-odd, P-odd Interaction from Axion-Like Particles using Dual Species Nuclear Magnetic Resonance with Polarized Xe-129 and Xe-131 Gas
• Laboratory Search for Spin-dependent Short-range Force from Axion-Like-Particles using Optically Polarized 3He gas
• Probe Spin-Velocity Dependent New Interactions by Spin Relaxation Times of Polarized ${}^{3}He$ Gas
• Calculations of the dominant long-range, spin-independent contributions to the interaction energy between two nonrelativistic Dirac fermions from double-boson exchange of spin-0 and spin-1 bosons with spin-dependent couplings
• Probing the Short Range Spin Dependent Interactions by Polarized ${}^{3}He$ Atom Beams
• Physical Properties of the Spin Hamiltonian on Honeycomb Lattice Samples with Kekulé and Vacuum Polarization Corrections