Constraints on Spin-Spin-Velocity-Dependent Interaction

Abstract

The existence of exotic spin-dependent forces may shine light on new physics beyond the Standard Model. We utilize two iron shielded SmCo${}_5$ electron-spin sources and two optically pumped magnetometers to search for exotic long-range spin-spin-velocity-dependent force. The orientations of spin sources and magnetometers are optimized such that the exotic force is enhanced and common-mode noise is effectively subtracted. We set direct limit on proton-electron interaction in the force range from 1\,cm to 1\,km. Our experiment represents more than ten orders of magnitude improvement than previous works.

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Cited by in corpus (5)

• Spin-dependent exotic interactions
• Searches for exotic spin-dependent interactions with spin sensors
• Constraints on Velocity and Spin Dependent Exotic Interaction at the Millimeter Scale with a Diamagnetic-levitated Force Sensor
• Improved constraints on exotic interactions between electron and proton in hydrogen
• Constraints on Axion Dark Matter by Spin-Dependent Macroscopic Force