Hi Chukwudi, all, it seems that these errors are not very stable with IP cut (and by stable I mean they are neither roughly constant, nor are they monotonous...). Do we understand this? If not, is this something to worry about? Kerstin On Thu, 7 Dec 2006, CHUKWUDI KWEKU CLARKE wrote: > Hi all so my webpage has the S/P systematics for the complete Breco > sample. The numbers for the "no pi0" sample are wrong. > The numbers can be found using the link at the top of the page. > http://www.slac.stanford.edu/~clarke1/protected/clarke1/IPsysRelErr.html > Cheers, C.C. >