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here are some mES fits for mm2 cut at 0.5. no cut on integrated purity: http://www.slac.stanford.edu/~bozzi/1DR14mm2newsel-050mES_Aeff.eps cut intpurity>0.5 http://www.slac.stanford.edu/~bozzi/1DR14mm2pur05-050mES_Aeff.eps