Section 12 Activities

	Primarily, the M1 Group had joint meetings with other 
groups as can be seen from the Agenda in Section 15. Also in 
Section 15, is the charge to the M1 Group and a list of participants 
in the M1 Group.

	The purpose of the many joint meetings was to reach out to 
physicists not presently involved in muon activities. Towards the 
Technical Groups we profited from the many experts on particular 
technologies. Hopefully, we also interested them in working on 
some of our problems. In our interaction with experimental 
physicists, the E Groups, we primarily interacted on the staging 
concept and, primarily, with the E1 Group. Here the interaction 
was intense asa we supplied them with beam parameter lists, and 
they suggested to us some modifications that would be 
advantageous. An example is the linac energy, which we have had 
at 2.87 GeV and which a change to 3.1 GeV would be 
advantageous for g-2 work.

	Turning to the "Charge", we believe that essentially all of 
the points raised have been discussed in other Sections of this 
document. However, to summarize:

1.	The accelerator aspects of a Neutrino Factory and a Muon 
Collider have been delineated. R requires all of the elements 
needed for a Factory (Driver, target, decay and capture 
section, longitudinal manipulation of particles and 
transverse cooling of particles, and acceleration). Only the 
storage ring is not needed, but a Collider requires very much 
more cooling and emittance exchange, and a collider ring 
that is closely isochronous. In addition there are space 
charge effects associated with the intense bunches needed 
for a Collider. The major difficulty, beyond those 
encountered in a Factory, is longitudinal cooling (emittance 
exchange). 
2.	The Factory is an important step towards a Collider. The 
various aspects of a Factory (as described above), simply 
without a storage ring, would all have to be achieved 
experimentally prior to initiating a Collider.
3.	The required R&D is described in Section 6, and described in 
much more detail by the MC. It requires 15 M$ a year for a 
healthy and directed program.
4.	Various international activities are described in Sectyion 11. 
It should be noted that the Japanese have already initiated 
construction of a proton driver. They will have a super beam 
by 2007.
5.	Cooling experiments are needed. MUSCAT, a scattering 
experiments, and HARP, a production experiment have been 
initiated by our European colleagues (but we are involved 
also). Test of components are underway at Fermilab, while a 
string test (3 sections of the cooling channel) is the long-term 
goal. In addition, an international cooling demonstration 
experiment is being explored as described in Appendix A 
(Section 14).
6.	It is premature, in our judgment, to make comparisons of a 
Muon Collider and a Linear Collider either in performance 
or a required R&D program.