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Hi all, I repeated the comparison SemiExcl-Ibu running the run1 Dstar reduced collections. Compare http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/EHBDOC/SemiExcl/ dstarurs/mainB0Dstar.html with http://www.slac.stanford.edu/~daniele/vub/testIbu/sx-2.html and the legenda for the mode is, for instance, in: ~daniele/devel/testCP/CPFramework/tagB.F The overall yield has a loss of around 10%. Looking more in detail I see (modes with a yield > 50 events): - D*pi ~10% less (all D modes) - D*pipi0 ~5% less (~all D modes) - D*pi2pi0 ~compatible - D*3pi ~10% less (all except D0->kpip0) - D*omegah ~10% more (except D-k3pi) purity higher - D*D* compatible - D*3pi2pi0 compatible For the remaining modes: - mode 17 (Dstark2pi0ks_1.8-2.2GeV) is gone - mode 18 not present in Cpf, some events in Ibu (maybe a flip with the previous one?) - mode 21 (Dstar2kpi2pi0_Ds*) factor 2-3 more in Ibu - mode 22 (Dstar5pi) not present in semiexcl!!!! I found a bug in the table, 0 yield for this mode. In Ibu just background but this does not make sense since the table says that the yield is 0. I discovered that modes with 0 yield have random value of intergrated purity. WE HAVE TO FIX THIS. - mode 24 (Dstar2K3pi_<2.7GeV) cleaner in Ibu - mode 30 is not present in Ibu - mode 43 (B -> D 2k pi pi0) not present in Ibu. - mode 47 (B -> D 2k pi 2pi0...) is not present in Ibu - mode 53 not present in Ibu I will try to understand if the some of these discrepancies are time(subsample)-dependent. Daniele On Fri, 28 Dec 2001, Daniele del Re wrote: > > Hi all, > > I performed a comparison ibu vs cpf looking at mes plot mode by mode. > > I started with the tags used by Urs for the mc-data production (see > IslBrecoilUser/tags-112101). In ran just one reduced superblock1 > collection for the D* (~2fb-1). The statisics is low but the results seem > to be compatible. The only relevant difference is in the B mode 38-39 (B > -> D 2k pi in K* window). There was a bug in the code for this mode. Now it is > fixed by Riccardo in the new tags of CompositionTools (rf-121701). > > I repeated the study with the new tags (IslBrecoilUser/tags-122101). We > have to add some new tags to make things working fine in analysis-12a. You > have to take the tags in > > http://www.slac.stanford.edu/BFROOT/www/Physics/CP/beta/doc/postCP/tags-anal12 > > I ran on two colletions (one of superblock1 and one of superblock2). > Again the results are very compatible. Just problems in some modes with > low yields: > > - mode 53 seems to be gone > - some disagreement in mode with high multiplicity and with many kaons > (19-20-35-45) > > No other evident bugs were found. More studies should be needed but since > these modes are not crucial we can post-pone them. > > > Then the CONCLUSIONS are: > > - good agreement but I need to run on the full sample of reduced > collections to say more. > - no lack of yield in the main modes > - Dpi mode is fine. > - We have to move to the new tags with bug fixes for the new production > > - I don't understand numbers presented by Urs in > > http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islreco > il/modes/mesallevents-0-1.eps > > All D*pi have a lack of ~25% in yields. In my study I did not see any > problem in this mode. > I tried to look at the production root files for the D* and I noticed > something strange. For instance in: > > /nfs/farm/babar/AWG/ISL/recoil/root/breco-112101/data/ > dstar_092701_superblock1_2000_b2-s3_aa.root > > I see ~630 events (originally the collection had 2000 events) and the run > range is 15300-15600. Runnning on the same collection I got ~1750 events > with a run range of 15300-16400. Something is wrong here and could explain > the difference in yield that we are observing. Urs, may you run on this > collection and check. Thanks, > > Daniele > > > > > On Fri, 21 Dec 2001, Urs Langenegger wrote: > > > > > Hoi, > > > > ok, I redid the mode-dependent study, you can find them starting at > > http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/modes/modes.html > > > > The signal pdf is a gaussian for the mode-dependent mes plots. All > > modes I see are shown. No cut on purity has been applied. All data in > > Run 1 in superblock 1 and 2 are used. > > > > I now see 41376 B candidates, fitted with CB, this is due to the > > patched B+ modes, see > > > > http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/modes/mesallevents-0-1.eps > > > > You can run the relevant macro by doing > > > > cd ~ursl/root/anaRecoil > > root > > .L .../recoil.C // wherever you have your IBU stuff > > loadMergedFiles() > > plotMes(2) // the argument is the offset for the file > > > > Note: Please edit recoil.C first, so that you dump the plots into > > another location (search for 'name' in plotMes() ...). Of course, you > > can run it on your own rootfiles as well, just edit loadMergedFiles(). > > > > > > Merry Christmas, now for good! > > --U. > > > > >