Constraints on dark photon dark matter using Voyager magnetometric survey
Abstract
The dark photon, an new hypothetical light spin 1 field, constitutes a well-motivated dark matter candidate. It manifests as an oscillating electric field with a fixed direction, which can be observed in magnetometric records. In this letter, we use magnetometer data from the Voyager probes to look for the dark photon in the 10-24 eV to 10-19 eV mass range, corresponding to frequencies between 10-9 Hz and 10-4 Hz. We also discuss the sensitivity of possible future SQUID magnetometry experiments.
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