Hi, I've finally gotten brat to give pretty much the same answer as Hiro's analysis for our most recent multiplicity paper. The calibrations and checks have been done for run 4713, which is also the run analyzed for the paper. The program that I run with bratmain to form a root tree with the dN/dEta values for the si and tile detectors is brahms_app/sjs_app/macros/CentMacro.C which I would typically run as >bratmain CentMacro.C -r 4713 -n 12 -v on A plot of dN/dEta as a function of pseudorapidity can then be obtained using the root macro program: brahms_app/sjs_app/macros/dNdEta.C The CentMacro.C program uses basic brat calls with the exception of a module (multReplayModule.cxx) located in the directory brahms_app/sjs_app/modules For now, the dN/dEta values obtained using these procedures are slightly smaller than those found in Hiro's analysis (eg., for 0-5% central, eta=0, I get dN/dEta = 605+/-10, quoting a statistical error (from a somewhat dubious analysis--I think this still need some work...but you can see what was done in dNdEta.C), whereas we claim in the paper 625+/-55, quoting the stat+syst error). The descrepancy still needs to be resolved, but at least the numbers are well within our quoted systematic range. We also still need to understand better why the tile results look so strange (the reason these were not included in the dN/dEta paper...) Regars, Steve
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