Hello, there. Yes, that's right. Calibration is done for the raw data numbers. Sometime soon I'll fix it to take GEANT numbers as well... When the vertex can not be found, the RdoModule gives 999 value. Yury. Erik Jakobsen wrote: > > Dear BRATs > > I have a question concerning the BrRdoModuleBB (and more generally the > other detectors). I have made a GBRAHMS simulation with vertex at Z=0 and > it has been digitized. From my macro, which is intented for both > simulated data and experimental data, I am using the BrRdoModuleBB to get > the vertex from the beam-beam counters. When processing the simulated data > I get some strange values for the beam-beam vertex - e.g. Z=999 for 65% of > the events and the rest of the vertex values are far from Z=0 (10 to 50 > cm off). > > My guess is that the BrRdoModuleBB uses experimental calibration numbers > for the simulated data, and as far as I know these data should have its > own calibration numbers. > > Is there anyone who knows anything about this problem? > > Regards, > Erik & Djamel -- ======================================================== Yury Blyakhman Phone: (212)998-7762 New York University Fax: (212)995-4016 Department of Physics 4 Washington Place Mobile: (646)528-7187 New York, N.Y. 10003 mailto:Yury_B@physics.nyu.edu =========================================================
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