Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset
Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset
In our recent companion paper [arXiv:2106.00022], we pointed out a novel signature of ultralight kinetically mixed dark-photon dark matter. This signature is a quasi-monochromatic, time-oscillating terrestrial magnetic field that takes a particular pattern over the surface of the Earth. In this work, we present a search for this signal in …