Constraining short-range spin-dependent forces with polarized ${}^3$He

Abstract

We have searched for a short-range spin-dependent interaction using the spin relaxation of hyperpolarized ${}^3$He. Such a new interaction would be mediated by a hypothetical light scalar boson with \CP-violating couplings to the neutron. The walls of the ${}^3$He cell would generate a pseudomagnetic field and induce an extra depolarization channel. We did not see any anomalous spin relaxation and we report the limit for interaction ranges $\lambda$ between $1$ and $100\mu \mathrm{m}$: $g_s{g}_p{\lambda }^2\le 2.6\times 10^{-28}{\mathrm{m}}^2(95\%C.L.)$, where $g_s$($g_p$) are the (pseudo)scalar coupling constant, improving the previous best limit by 1 order of magnitude.

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• A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
• Spin-Dependent Macroscopic Forces from New Particle Exchange
• Gravity Resonance Spectroscopy Constrains Dark Energy and Dark Matter Scenarios
• Laboratory Search for Spin-dependent Short-range Force from Axion-Like-Particles using Optically Polarized 3He gas
• New constraints for CP-violating forces between nucleons in the range 10-4 cm - 1 cm
• Constraining interactions mediated by axion-like particles with ultracold neutrons

Cited by in corpus (13)

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• Tests of Fundamental Quantum Mechanics and Dark Interactions with Low Energy Neutrons -- Extended Version
• Particle Physics at the European Spallation Source
• Spin-dependent exotic interactions
• Search for monopole-dipole interactions at the sub-millimeter range with a ${}^{129}$Xe-${}^{131}$Xe-Rb comagnetometer
• 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
• Searches for exotic spin-dependent interactions with spin sensors
• Constraining CP violating nucleon-nucleon long range interactions in diatomic eEDM searches
• Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI
• Cold-atom comagnetometry via optical control of spin states