Backgrounds and detector performance at a 2 x 2 TeV {mu}{sup +}{mu}{sup {minus}} collider
Conference
·
OSTI ID:42482
The rich physics potential of a high-energy high-luminosity {mu}{sup +}{mu}{sup {minus}} collider and the surprising feasibility of a design attract the attention of many people these days. A few issues define the practicality of such a project, with the enormous particle background levels in a detector due to unavoidable reasons holding first place. 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 arise in the machine. The decay length for 2 TeV muons is {lambda}{sub D}{sup {minus}1} {approximately}10{sup {minus}7} m{sup {minus}1}. With 10{sup 12} muons in a bunch one has 10{sup 5} decays per meter in a single pass through an interaction region, and 10{sup 8} decays per meter per 12 msec store. This paper examines two major classes of detector backgrounds presented in the muon collider: beam halo backgrounds, and the {open_quotes}direct{close_quotes} backgrounds from electrons from {mu}{yields}e{nu}{bar {nu}} decay occurring in the beam channel. The authors describe the nature of both of these backgrounds, provide results of first realistic calculations for both sources and discuss their effects on plausible detectors. Various shielding and collimation geometries have been simulated, and their efficacy and the nature of the surviving background discussed.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 42482
- Report Number(s):
- FNAL/C--95/037; CONF-9411210--1; ON: DE95009107
- Country of Publication:
- United States
- Language:
- English
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