Report of the National Lab Accelerator Study Group for a Muon Collider

Abstract

The National Laboratory Accelerator Study Group (NLASG) was established to assess the accelerator research and development required to advance a future high-energy Muon Collider, with particular emphasis on opportunities for coordinated contributions from U.S. national laboratories. This report examines the principal accelerator subsystems, their technical maturity, and the critical challenges that must be addressed before proceeding to a technical design. Topics include the proton driver, target and capture system, muon cooling, acceleration, collider ring, and machine-detector interface. The study identifies priority R&D activities, evaluates opportunities to leverage existing laboratory capabilities and accelerator infrastructure, and outlines a staged approach to technology demonstrations and integrated system validation. Particular emphasis is placed on developing a coordinated national research strategy that complements international efforts and establishes a technically credible path toward a future Muon Collider.