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Archived Messages for HALLB@cebaf.gov: GSIM simulation files now available

GSIM simulation files now available

Will Brooks (brooksw@jlab.org)
Thu, 23 Apr 1998 20:29:54 +0000

Dear CLAS collaborator,

The GSIM Focus group started its first 'long' simulation run this
week. Rather than describe this in detail (some details are at the web
site: http://www.cebaf.gov/~brooksw/gsim, or alternately from
http://www.physics.unh.edu/Maurik/gsim_info.shtml),
I only intend to point you to the location of the output files for those
of you who want to analyze them.

The BOS format files may be found in the directory:
/work/clas/disk2/gsim_unprocessed/longrun_a
Some of these files are not closed properly, so you may want to run
'countbos' on the shorter ones to see how many events to analyze.

There are ntuples in the subdirectory

/work/clas/disk2/gsim_unprocessed/longrun_a/ntuples

These only contain the 'seb ntuple 10.' Soon I hope to put the MCTK
ntuples into the same directory so that we can compute the acceptance.
All of these events are CELEG data, prescaled by Q^4, for 1.645 GeV with
60% field. In total we have about 1.5 million events, with more coming
in as time goes on.

In addition, Kyungseon Joo has generated and analysed data for single
pi-zero production using the AO code:

---------------------------------------------
Hi Will,
I created a new directory under gsim_unprocessed for
ao_gen. There are three subdirectories (ao_gen, gsim, user_ana).
ao_gen: monte Carlo datt
gsim : gsim data
user_ana : rzn files from recsis

I am putting files there as I process data.
---------------------------------------------

I have checked the mit_a3.rzn ntuple, and it appears to be reasonably
ok. Cole Smith has also looked at some of the UVA output.
We would appreciate hearing about any and all problems with this
simulated data.

Best regards,

- Will