[G14_run] found bug in helicity assignment

Franz Klein fklein at jlab.org
Wed Feb 15 20:20:14 EST 2012


Patrick,
I made the copy of helicity information into the cooked file (HEAD bank 
bits 29+30) too simple: I checked only event numbers of the neighbouring 
helicity events ... which could get screwed up after a longer beam trip. 
I apologize that I did not catch this in the reconstruction code 
although I corrected the preprocessing routine (sync) already end of 
December.

You can start now with cooking files in pass0 version1 (starting with 
68023).

Thanks
Franz

-- 
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                   Franz J. Klein, Associate Professor
                   CUA, Department of Physics
                   Washington, DC 20064
   office: Hannan Hall 206          phone: 202-319-6190
   or: Jefferson Lab,CC F-243       phone: 757-269-6672
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