The muon chambers are interspersed in the return yoke iron of
the CLEO solenoidal magnet.  All particles but muons are stopped in
the iron, and even muons of momentum less than 1.2 GeV/c stop before
reaching the muon chambers.  So the muon chambers help identify high
energy muons.
	At CLEO-c, where the available CM energy will be only 3 to 5
GeV, the muon chambers will play a new role.  They will only be able
to identify the most energetic muons from the interaction region.  
However, they may be able to tag cosmic ray background events.  At
10 GeV CM energies, cosmic rays are rather easy to eliminate by their 
typically low number of charged particles.  But at 3 GeV, the number of
charged particles produced from beam beam collisions is much smaller.  
At the same time, the beams produce fewer interesting events per second, 
so cosmic rays will constitute a larger fraction of the events we collect, 
about 10%.
	Until now, tracks found in CLEO's main drift chamber were
simply extrapolated out to the muon chambers and hits on track sought.
To use the muon chambers to reject cosmic rays (and to confirm that
the chambers are still working) we must write a program to find tracks
in the muon chambers alone.  This will be the task of the REU student
on this project.  The final product will be a program that, given a
list of hits in the muon chambers, delivers a list of tracks found,
describing each track by its direction and quality of fit.

Mentor: David L. Kreinick
Skills required: C++ programming, physics intuition.  Helpful would be
a knowledge of Unix and ability to read FORTRAN.