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arXiv · 2208.00658

Constraints on Spin-Spin-Velocity-Dependent Interaction

Wei Ji·Weipeng Li·Pavel Fadeev·Filip Ficek·Jianan Qin·Kai Wei·Yong-Chun Liu·Dmitry Budker
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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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Wei Ji, Weipeng Li, Pavel Fadeev, Filip Ficek, Jianan Qin, Kai Wei, Yong-Chun Liu, Dmitry Budker. 2022-08-01. Constraints on Spin-Spin-Velocity-Dependent Interaction. https://doi.org/10.1103/physrevlett.130.133202

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