Dimuon and Trimuon Final States in Deep Inelastic Muon Scattering

Abstract
32 dimuon and 11 trimuon events are observed in deep inelastic muon interactions at 150 GeV. The rate of diumuon production is greater than 5 × 104 that of inclusive muon scattering. High-inelasticity trimuons occur at a rate one order of magnitude lower. These events are more numerous and the extra muons have qualitatively different production characteristics than muons expected from conventional sources.