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Hi Kerstin, two questions: do you know if they are non-resonant or exclusive b->ulnu decays? where do these sigmas come from (who is their mother)? Daniele > concerning the question from yesterday's meeting, where the Sigmas and > Lambdas (on the signal side in signal MC) come from: In all the decays I > checked they seem to come from a X_u decay from B -> Xu l nu and I found > 23 decays of this kind (containing either a Sigma+, Sigma- or Lambda0 on > the signal side) in the 100000 events I looked at (I used the > non-reweighted vubmix). > > Kerstin > >