Re: [BLASTTALK] crossection comparison

From: Tancredi Botto (tancredi@lns.mit.edu)
Date: Mon Jul 26 2004 - 09:45:49 EDT


Vitaly,
it must be you, or your cuts, or at least it's not me..

See attach Q2 spectrum with one cut only "qwl==-1". By chance the scales
is the same (x100..). My plot does not fall off as fast as yours.
Situation does not changes with ep QE cut (pm_eep_cut)

Actaully, also chi's data match reasoanble well in that Q2 area.

Are you sure you don't have e- momentum cuts or else ?
how do you filter data ?

-- 
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Tancredi Botto,  		phone: +1-617-253-9204  mobile: +1-978-490-4124
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On Mon, 26 Jul 2004, vitaliy ziskin wrote:

> There is a problem with count rate at large Q^2. Is there tracking > efficiency issue. I'm not making any cerenkov cuts. My best guestimate > of a luminocity is 1.85X10^{31} at 80 mA. The thetacms plot (a variable > that I'm fitting in) shows that our reconstruction still needs some work. > > > Cheers, Vitaliy >


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