Hi all,
After the discussion in todays meeting I looked at the mes distribution
for intpur 0.6 - 0.75 for run1-2 data with the old and new production. The
fitted plots are at:
www.slac.stanford.edu/~clareb/IntpurPlots/
(EnergyGam>1.3GeV is applied)
The yields are: #signal #background
old production runs1+2 1582.1+/-62.1 1751.1+/-56.8
new production runs1+2 1591.4+/-62.9 2196.3+/-61.3
So there seems to be a purity problem.
Clare
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