mail from Maaijke from 06 Aug 2004 about new FLT maps in 2003
Date: Fri, 06 Aug 2004 19:43:21 +0200 (MEST) From: Maaijke Meviushttp://www-hera-b.desy.de/subgroup/physics/herab/analysis/cc2003/flt.htmlTo: hbanalysis Subject: FLT efficiency maps 2003 Dear all, Due to some misunderstandings ALL 2003 MC has been reconstructed with the old FLT-efficiency maps. Fortunately, Antonello has written a patch which can be used to recover the trigger weight from the new FLT efficiency maps for MC mini's. One should use this code for the 2003 MC to get the improved FLT-efficiencies. A description plus the code can be found at the end of the flt analysis page:
Dima has made a new keybook number, for which the only change is the new 2003 FLT efficiency maps: MC keybook 14 You should use this keybook in your kumac, and the run2cnakey -http://www-hera-b.desy.de/subgroup/software/arte/reco/keybook/keybook.htmlwhere is defined for each period according to the following scheme: oct nov dec jan feb 210210 210211 210212 210301 210302 211211 211301 (the extra numbers in nov and jan refer to special sub-configurations within a month (nov.:missing quadrant, jan.: swapped muon optical links) ) More information on KEYBOOK's and CNAKEY's can be found in:
After calling "FltEventWeightCalc();" in your usevnt.C (as explained by Antonello) the weight is stored in the ArteTable.eflt[0] !!!Please do not use the old and obsolete functions probEtrig() probMuTrig() float probtrig(int & ptseeds, int ttype); from the bbar page, acces the MCIN table directly to get the weight! If anything is not clear, please let me know (Antonello will be on holidays the next weeks) best regards, Maaijke