First Results from ABRACADABRA-10 cm: A Search for Sub-$\mu$eV Axion Dark Matter

Understand

The axion is a promising dark matter candidate, which was originally proposed to solve the strong-CP problem in particle physics.

• To date, the available parameter space for axion and axion-like particle dark matter is relatively unexplored, particularly at masses $m_a\lesssim1\,\mu$eV.
• ABRACADABRA is a new experimental program to search for axion dark matter over a broad range of masses, $10^{-12}\lesssim m_a\lesssim10^{-6}$ eV.
• ABRACADABRA-10 cm is a small-scale prototype for a future detector that could be sensitive to the QCD axion.