Radphi Conference Call 2/08/02

February 8, 2002
University of Connecticut
Storrs, CT

Present: Elton, Dan, Scott, Dan, Phil, Richard, Mihajlo.

Dan: Cluster cleanup and recovery

He plots invariant mass in 2-cluster events cut on cluster separation. There are lot of low-mass pairs (split-offs) but above 6 cm there is essentially noting except pi0's. This looks like a clean cut.

• Gauss-like function with elliptical shape centered at the focus.
• Gauss-like function with elliptical shape centered at center.
• Scott's function - showed fit but success was not that much better.
• Plan - look-up table.

Scott:

• Dan Krop has been working on BGV makehits, and is still working on the BGV clustering. He plans to isolate a pi0-pi0 sample, but right now he has some K0_s contamination - want to use BGV to veto extra strange stuff.
• looking at resolution function, nothing to say at present.