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Hi all, in order to quantify the impact of the crossfeed in the measurement, I fit the data both with generic MC and generic+crossfeed MC as model. The results are: generic: BRBR = 0.0140658 +- 0.00365657(stat) +- 0.00198155(MC stat) generic + crossfeed: BRBR = 0.0137173 +- 0.00345909(stat) +- 0.00192688(MC stat) So the difference is the 0.0035 and the systematics we can quote is 2.5%. Daniele