1. Search for Low-Mass Axion Dark Matter with ABRACADABRA-10 cm
- Author
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Salemi, Chiara P, Foster, Joshua W, Ouellet, Jonathan L, Gavin, Andrew, Pappas, Kaliroë MW, Cheng, Sabrina, Richardson, Kate A, Henning, Reyco, Kahn, Yonatan, Nguyen, Rachel, Rodd, Nicholas L, Safdi, Benjamin R, and Winslow, Lindley
- Subjects
Nuclear and Plasma Physics ,Particle and High Energy Physics ,Quantum Physics ,Physical Sciences ,Mathematical Sciences ,Engineering ,General Physics ,Mathematical sciences ,Physical sciences - Abstract
Two of the most pressing questions in physics are the microscopic nature of the dark matter that comprises 84% of the mass in the Universe and the absence of a neutron electric dipole moment. These questions would be resolved by the existence of a hypothetical particle known as the quantum chromodynamics (QCD) axion. In this work, we probe the hypothesis that axions constitute dark matter, using the ABRACADABRA-10 cm experiment in a broadband configuration, with world-leading sensitivity. We find no significant evidence for axions, and we present 95% upper limits on the axion-photon coupling down to the world-leading level g_{aγγ}
- Published
- 2021