2nd FEASIBILITY STUDY of a MUON STORAGE RINGν FACTORY

The design and simulated performance of a second feasibility study are presented. The ef£ciency of producing muons is ≈ 0.17 µ/p with 24 GeV protons. This study was sponsored by the BNL Director, with BNL site speci£c driver and layout. It was a follow on to the First Study[2] sponsored by the Fermilab Director, with Fermilab site speci£c driver and layout, and was the main US collaboration conceptual effort during the past year. Other studies, and technical work by the collaboration is reported in other papers.