PHENIX Muon Arms

The PHENIX Muon Arms detect muons at rapidities of \y\ = (1.2-2.4) with full azimuthal acceptance. Each muon arm must track and identify muons and provide good rejection of pions and kaons (similar to 10(-3)). In order to accomplish this we employ a radial field magnetic spectrometer with precision tracking (Muon Tracker) followed by a stack of absorber/low resolution tracking layers (Muon Identifier). The design, construction, testing and expected run parameters of both the muon tracker and the muon identifier are described. (C) 2002 Elsevier Science B.V. All rights reserved.