Experimental limit on an exotic parity-odd spin- and velocity-dependent interaction using an optically polarized vapor

Abstract

Exotic spin-dependent interactions between fermions have recently attracted attention in relation to theories beyond the Standard Model. The exotic interactions can be mediated by hypothetical fundamental bosons which may explain several unsolved mysteries in physics. Here we expand this area of research by probing an exotic parity-odd spin- and velocity-dependent interaction between the axial-vector electron coupling and the vector nucleon coupling for polarized electrons. This experiment utilizes a high-sensitivity atomic magnetometer, based on an optically polarized vapor that is a source of polarized electrons, and a solid-state mass containing unpolarized nucleons. The atomic magnetometer can detect an effective magnetic field induced by the exotic interaction between unpolarized nucleons and polarized electrons. We set an experimental limit on the electron-nucleon coupling $g_{\text{A}}^{\text{e}}{g}_{\text{V}}^{\text{N}}<$ $10^{-30}$ at the mediator boson mass below $10^{-4}$ eV, significantly improving the current limit by up to 17 orders of magnitude.

arXiv comment17 pages, 5 figures

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Cited by in corpus (12)

• Search for axion-like dark matter with spin-based amplifiers
• Search for exotic spin-dependent interactions with a spin-based amplifier
• Spin-dependent exotic interactions
• Experimental Constraint on an Exotic Parity-Odd Spin- and Velocity-Dependent Interaction with a Single Electron Spin Quantum Sensor
• New Experimental Limits on Exotic Spin- and Velocity-dependent Interactions Using Rotationally Modulated Source-masses and an Atomic-magnetometer Array
• Pseudovector and pseudoscalar spin-dependent interactions in atoms
• Searches for exotic spin-dependent interactions with spin sensors
• Proposal for the search for new spin interactions at the micrometer scale using diamond quantum sensors
• Using Earth to Search for Long-Range Spin-Velocity Interactions
• Searching for Exotic Spin-Dependent Interactions Using Rotationally Modulated Source Masses and an Atomic Magnetometer Array
• Constraints on Velocity and Spin Dependent Exotic Interaction at the Millimeter Scale with a Diamagnetic-levitated Force Sensor
• Search for an exotic parity-odd spin- and velocity-dependent interaction using a magnetic force microscope