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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