hPz and Pzz up to 15370 Re: [BLAST_SHIFTS] Target polarization low

From: Chi Zhang (zhangchi@MIT.EDU)
Date: Mon Apr 18 2005 - 23:21:31 EDT


Hi, just would like to remind people that the crunch turn over can
actually be pushed far beyond 15347. as designed, partial statistics are
available up to 15370. there are 31 runs, a normal run has about 400C, so
runs 15335-15370 contains about 12kC.

show_deep_asym_all_47.C can be run without -closed option on runs
15335-15370. 15370 ended 8:00pm this evenning. 9.9kC of data (out of the
estimated 12kC) are saved to flr root files. the result is:
        hPz = 0.372+-0.034, 0.318+-0.022

runs 15335-15347 have not enough stat to give a good Pzz, but 15335-15370
so far crunched yield:
        Pzz = 0.323+-0.073.

So, it is possible to analyze the data within the last 12 hours instead
of waiting for the crunch to finish which now takes about 14 hours. No
changes to current online crunching setup are needed so long as one can
bear with the warning messages root spits out. All this thank to Chris who
discovered the AutoSave feature of root files.



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