Hunt for magnetic signatures of hidden-photon and axion dark matter in the wilderness
Ibrahim Sulai, Saarik Kalia, Ariel Arza, Itay M. Bloch, E. Muñoz, Christopher Fabian, Michael A. Fedderke, Madison Forseth, Brian Garthwaite, Peter W. Graham, Will Griffith, E. Helgren, Katie Hermanson, Andres Interiano-Alvarado, Brittany Karki, A. Kryemadhi, Andre Li, Ehsanullah Nikfar, J. E. Stalnaker, Yicheng Wang, Derek F. Jackson Kimball
Abstract
This paper reports on the search for ultralight dark matter in the form of axions and dark photons using an innovative experimental design in which the earth serves as a transducer converting ultralight dark matter into a characteristic magnetic field signal. The magnetometers used to detect the expected magnetic field patterns are placed in areas in which magnetic noise sources, such as anthropogenic ones, are minimal. Although no conclusive detection is reported, limits are set for models in various parameter ranges and the prospects for refining the detection methodology are presented.