Laser-Driven Multi-GeV Muon Sources: Production and Applications

Recent advances in laser wakefield acceleration (LWFA) provide a route to generate multi-GeV electron beams, enabling transportable, laser-driven muon sources.By directing the electron bunches onto high-Z targets, muons are produced through Bethe-Heitler pair creation and pion decay processes.The resulting pulsed flux can exceed the natural cosmic background while offering tunable energy and directionality.This work reviews the current status of laser-driven muon sources, scaling laws, experimental demonstrations at leading facilities, and detection techniques.Reported LWFA experiments have observed directed, high-energy and lower-energy, isotropic muon emissions.Measured muon lifetimes matched the well-known value, providing evidence of muon generation.We discuss performance projections for nextgeneration high-repetition-rate systems capable of substantially enhanced muon flux.Such compact sources open new opportunities for muon-radiography, nuclear security, high-energy physics research, and exploratory concepts such as muon-catalyzed fusion.Continued development of LWFA electron drivers and detector systems is critical to realizing these applications.