Snowmass 2001

June 30 - July 21, 2001

Working Group on Muon-Based Systems

Intense muon sources have been discussed as a starting point for very high energy colliders and even more in recent years as a source of very intense and well-collimated neutrino beams.

This working group should identify, but clearly distinguish, the main accelerator physics aspects of both the Muon Collider and the Neutrino Source. Even more, it is crucial to understand for the high energy physics community, how much a Neutrino Source represents a first step to a muon collider and what are the additional burdens. Given the variety of technologies that require R&Dmakes it necessary to have the group present a risk assessment of the various subcomponents, their R&D goals and the time scale on which the R&D could be realized. The more recent refocus of the collaboration towards Neutrino Sources should reflect in the main topics of the discussion.

The different approaches: CERN, KEK-JAERI, and the Muon Collaboration (including the Fermilab and Brookhaven locations), should be compared in performance, risk and (if possible) schedule.

A discussion on whether a Muon Cooling experiment is necessary and/or viable is absolutely required and should be presented by the group.

For the Muon Colliders, the technical performance, especially for a low energy (Higgs collider) machine should be adressed. Technical performance (power consumption, risk assessment, luminosity, etc ) should be compared to linear colliders in the same energy range.

Input here will be required from the High Energy physicists to define the measure of performance for these two concepts (MC, LC). For the long-term R&Dthe advantages compared to e+e- accelerators should be worked out and quantified as much as possible.

Recommended Coordinators: K. McDonald, A. Sessler