hier. wir koennen NICHTS reproduzieren von denen. NICHTS. nicht mal, wenn es eigentlich identisch sein sollte. On Fri, 7 Nov 2003, Kerstin Tackmann wrote: > > Hello experts, > > we need your help, please read this mail until the end. > > We are trying to run over your signal MC and write out all events (also > the events without Breco candidate with the aim to get unbiased > information on mxhadgen for the unfolding of the m_X spectrum). Following > the instructions of > http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/islbrecoiluser.instructions.html > but using analysis-13b instead of analysis-13 and replacing Linux2 by > Linux24 in the following, the only other change we did was in IbuIsl.tcl: > instead of > # -- Dump semileptonic events on generator level > # mod talk CompBRecoNtpDump > # mod talk CompIbuNtpDump > # verbose set f > # dumpAllSemiLep set 1 > # show > # exit > we used > # -- Dump semileptonic events on generator level > # mod talk CompBRecoNtpDump > mod talk CompIbuNtpDump > # verbose set f > dumpAllSemiLep set 1 > show > exit > > > We found some inconsistencies when comparing the file for which the > following tclfile was used: > /afs/slac.stanford.edu/g/babar/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/tcl/new2vubmix-2000-new2000-12.tcl > > with the following of your files: > /nfs/farm/babar/AWG23/ISL/sx-080702/newsig/rootfiles/new2vubmix-2000-new2000-12.root > > For example: > your file our file > # events in file 849 896 > # B0 (from modeB0) 574 623 > # chB (from modeChB) 539 579 > > To run anaQA on our file we needed to make two changes to it: > as a default, fBRecoFlavor is =0 (now) and for events with > dnB0Lund[indexbestB]==0 (all n for charged, n==1 for neutral B) > fBrecoFlavor does not get changed (in util.icc) and > tmppurB = > brecosig[modeB-10000]/(brecosig[modeB-10000]+brecobkg[modeB-10000]); > does not get set for modeB<10000 (in recoilNtp.cc). > We checked that this and the original anaQA give the same results for the > variables quoted below on your file. > > after running anaQA on these files: > # events from mxhadgen 768 816 > # events w/ pcms>1. 23 18 > # events w/ pcms>0. 29 25 > > For the # of events from mxhadgen we required brecoflav==0 here (without > this requirement we get 9218 for our file). > > So our file has more events and more B candidates but less leptons in > these regions of pcms. > > > Since we did not understand that, we made a dummy check: > > We try to run and just write out only the events with Breco > candidate and compare with your root-tuples, we already find differences > in the number of events that were written when we run over the same > collection. > > We used IbuIsl.tcl with > # -- Dump semileptonic events on generator level > # mod talk CompBRecoNtpDump > # mod talk CompIbuNtpDump > # verbose set f > # dumpAllSemiLep set 1 > # show > # exit > > Here is what we did: > We followed the instructions of > http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/islbrecoiluser.instructions.html > but took analysis-13b instead of analysis-13 (and replaced Linux2 by > Linux24 in the following instructions as well as RH62 by RH72) and > compiled locally. We used the run script for the submission of a job with > the following tcl file: > /afs/slac.stanford.edu/g/babar/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/tcl/new2vubmix-2000-new2000-12.tcl > > with the following command: > ../IslBrecoilUser/run -q bfobjy -l $SCRATCH/log -r > $SCRATCH/output -w 20 ../bin/Linux24/IslBrecoilUserApp > ../IslBrecoilUser/islNew.tcl > tclpath/signconc/new2vubmix-2000-new2000-12.tcl > > after h2r we compared the resulting rootfile with the following of your > rootfiles: > /nfs/farm/babar/AWG23/ISL/sx-080702/newsig/rootfiles/new2vubmix-2000-new2000-12.root > > and we find some discrepancies. > For example: > your file our file > # events in file 849 896 > # B0 (from modeB0) 574 623 > # chB (from modeChB) 539 579 > > after running anaQA on these files: > # events from mxhadgen 768 816 > # events w/ pcms>1. 23 18 > # events w/ pcms>0. 29 25 > > So our file, which should be identical to your original one, has more > events and more B candidates but less leptons in these regions of pcms. > > Is there a way to understand these discrepancies? Is the file we use for > comparison the correct one to use? Are we doing anything wrongly? > > Any answer will be appreciated, > thanks, > Kerstin >