Backgrounds and detector performance at a 2x2 TeV μ+μ- collider

In contrast to hadron colliders where particle backgrounds come both from interaction point (IP) and accelerator, almost all the backgrounds in the muon collider detectors aris in the machine. Two major classes of detector backgrounds, beam halo backgrounds and electorn backgrounds from μ→eν bar ν decay occurring in the beam channel, in the muon collider are discussed. The nature of both of these backgrounds, results of calculations for both of these sources, and their effects on plausible detectors are discussed. Various shielding and collimation geometries have been simulated, and their efficacy and the nature of the surviving background discussed.(AIP)1995 American Institute of Physics