From: Pawel Staszel (staszel@alf.nbi.dk)
Date: Wed Oct 16 2002 - 12:21:49 EDT
Kris Hagel wrote: > Pawel, > You are right, I do not have BrDcRdoModule. I did not forget; I knew of > its existence, but it was not used in the example script I got (I don't > know where) when I started pp analysis. I polked around somewhat and > never found where it would be used, so I didn't include it. > > So, what is it used for? Will I have to reconstruct all the runs again? > Am I missing important information by not having it in there? BrRdoDc are used in the later stage of analysis, when doing the global tracking, to retrieve some local T3 and T5 tracks which were missed in "ordinary" tracking during the first level of reduction. The module that does it is called BrDcEnhancementModule - it is not yet in brat but in rk_app/bfs/dcenh. Concerning pp, this is specially important for T5. We run with T5-II turn off, and the "ordinary" (or rather "regular") tracking is around 80% efficient. BrDcEnhancementModule can improve final tracking efficiency in T3 and T5, by utilizing the global tracks found in the other detectors. Any way, looking at the data you have reduced I seen 91% efficiency in T3 and 97% in T4. >From my calculation on raw data (run6418) I saw 99% for T3 and 99% for T4. So first I have to find out where this discrepancy came from and have a question. How you do the global tracking - do you use the BrMatchingOffsetModule. If so, you need files that contain sigmas and offsets required by MrModuleMatchTrack. Do you have such files for pp? (for AuAu we called them offset5300_6000.FFS, offset5300_6000.T2_T4, offset5300_6000.T3_T4 and offset5300_6000.T4_T5). If so, I would like to use the files. I not - how you do the matching? Pawel. > > > Reconstructing the raw data again will not be a big deal once HPSS comes > back (probably next week) if that is necessary. This is also a good > time because I have been looking at a relatively small number of pp runs > and am now ready to build up to the full statistics. > > Regards > > Kris > > Pawel Staszel wrote: > > > Dear Kris, > > I found out that there are no BrDcRdo tables for T3 and T5 in > > pp reduced files. > > You probably forgot to add BrDcRdoModule to your reduction script. > > The example of how to include DcRdo is in file > > /brahms/u/bramreco/reduce/ProductionReduction.C. > > Check also whether your BrDcTrackingModules are set in the same way. > > > > Regards Pawel. > > > > > >-- > > ---------------------------------------------------------------------- > >| Pawel Staszel | > >| Niels Bohr Institute Tb 8 email: staszel@nbi.dk | > >| Blegdamsvej 17 phone: (+45) 35 32 53 51 | > >| København Ø FAX: (+45) 35 32 50 16 | > >| Danmark | > > ---------------------------------------------------------------------- > > > > -- ---------------------------------------------------------------------- | Pawel Staszel | | Niels Bohr Institute Tb 8 email: staszel@nbi.dk | | Blegdamsvej 17 phone: (+45) 35 32 53 51 | | København Ø FAX: (+45) 35 32 50 16 | | Danmark | ----------------------------------------------------------------------
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