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arXiv · 2111.06732

Dissecting axion and dark photon with a network of vector sensors

Yifan Chen·Min Jiang·Jing Shu·Xiao Xue·Yanjie Zeng
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Abstract

We develop formalisms for a network of vector sensors, sensitive to certain spatial components of the signals, to identify the properties of a light axion or a dark photon background. These bosonic fields contribute to vector-like signals in the detectors, including effective magnetic fields triggering the spin precession, effective electric currents in a shielded room, and forces on the matter. The interplay between a pair of vector sensors and a baseline that separates them can potentially uncover rich information of the bosons, including angular distribution, polarization modes, source localization, and macroscopic circular polarization. Using such a network, one can identify the microscopic nature of a potential signal, such as distinguishing between the axion-fermion coupling and the dipole couplings with the dark photon.

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Yifan Chen, Min Jiang, Jing Shu, Xiao Xue, Yanjie Zeng. 2021-11-12. Dissecting axion and dark photon with a network of vector sensors. https://doi.org/10.1103/physrevresearch.4.033080

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