> > Hi, > I will like to broaden the distribution of this information and to point out > that when > you introduce cuts that remove 2/3 of all events even though they look > marginal in the 2D plot > we must understand the bias on the other distributions. One concern with the > ZDC is that possible > central events are thrown out? > - Could you look at the distribution in Tile(mult) for the two classes of > data. I have done a quick check for 10k events using the mult from JH's macro - see www.fys.uio.no/~bjornhs/ZDCcorr_MultEff.ps It seems that we do indeed pick out the most central events with this cut. (The diff. in number of entries between the top and bottom plots is because of events where the mult macro gives no result.) > - The intensity in the band looks similar but could you quantify this ? I'll have that by tomorrow. ------------------------------------------------ Bjorn H. Samset Master-student in Heavy Ion physics Mob: +47 92 05 19 98 Office: +47 22 85 77 62 Adr: Kri 2A709 Sognsveien 218 0864 Oslo
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