Hi all, here is the plot for the endpoint correction: http://www.slac.stanford.edu/~menges/Vub/mes/fit_endpoint.gif http://www.slac.stanford.edu/~menges/Vub/mes/fit_endpoint.eps The fit is on data and should be compared with http://www.slac.stanford.edu/~petrella/mesfits/data_0505.gif http://www.slac.stanford.edu/~petrella/mesfits/data_0505.eps The chi^2 is moving from around 6 to 3.7 and this is mainly due to one bin. The actually endpoint is not improving very much. This needs some more work/understanding of the endpoint/slope of the signal function. Cheers, Wolfgang ----------------------------------------------------------------------------- Wolfgang Menges Queen Mary, University of London SLAC, MS 35 Mile End Road 2575 Sand Hill Road London, E1 4NS, UK Menlo Park, CA 94025, USA ++44 20 7882 3753 ++1 650 926 8503 [log in to unmask] -----------------------------------------------------------------------------