Hello all, I’m having a strange problem when attempting to do a blind fit of some data. I’m forcing a blind region in the middle of my mass window, and the bins adjacent to the blind region have strangely low-yields. I went to investigate and found (by doing a pull distribution of my fit) that the pull in these adjacent bins was quite normal, not even placing among the highest-pull bins in the mass window.
So the only conclusion that I can come to is that the script that I’m using isn’t drawing these bins correctly. After all, I know that there’s nothing wrong with the dataset, otherwise the pull values would be off as well. I think that this is a problem with the blinding procedure, or some strange RooFit artifact…
Any help understanding and fixing this problem would be very much appreciated! I’ve linked my macro and an example of an output graph created by it, showing the weird bins adjacent to the blind region.
Cheers!
output_graph.pdf (20.6 KB)
Blind_fit_2011.cc (10.8 KB)