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Message ID: 71     Entry time: 02/25/2005 01:09:34 PM
 Author: Klaus Grimm 
 Type: Simulation 
 Category: Geant3 
 Subject: New clean ntuple from Juliette  
 Record date: 02/25/2005 01:06:06 PM 
Juliette Mammei send me a new Geant3 PAW ntuple which is free of wierd energy and momentum events caused by a bug in the
radioactive correction code in Qweak written by Richard Jones.
I did a coarse visual check of the PAW->ROOT translated ntuple for some values, see attachment.
There is obvious a peak at very small Q2 which I have not seen/noticed before, probably caused by the peak for small theta
angle? 

Note: the ntuple contains only the primary event information for those scattered electrons which are registered in Geant3
as a hit (of the virtual detector plane). So it is *not* the Q2 distribution of the event generator.

 
Attachment 1: NewNT_en_o_histo.gif  6 kB  | Hide | Hide all
NewNT_en_o_histo.gif
Attachment 2: NewNT_en_o_scatter.gif  13 kB  | Hide | Hide all
NewNT_en_o_scatter.gif
Attachment 3: NewNT_ptot_o_histo.gif  6 kB  | Hide | Hide all
NewNT_ptot_o_histo.gif
Attachment 4: NewNT_q2_o_histo.gif  6 kB  | Hide | Hide all
NewNT_q2_o_histo.gif
Attachment 5: NewNT_theta_o_histo.gif  6 kB  | Hide | Hide all
NewNT_theta_o_histo.gif
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