Speaker
Description
High-intensity muon beams could enable a muonium-based search for axions through resonant quantum transitions between hyperfine states. Combining theoretical calculations with simulation results, we demonstrate that such a muonium-based experimental approach could complement and tighten constraints on the axion-muon coupling beyond existing limits from the muon g−2 measurement, over the axion mass range of 18–130 µeV. These results establish a new spectroscopic channel in muonium that enables searches for axion and axion-like particle dark matter.