Hi,
I fixed a couple of bugs related to kaon ID.
The first was related to the couting of the number of kaons in the X
system.
If a muon was found as the leading lepton (then nle>0 and nmu>1) and
same muon was found to be also a kaon the number of charged kaons was
incremented. This should be inconsistent with our definition of nkp
(charged kaons in the X system) and to what we expect as signal
enriched(-depleted) I would say.
Now (new code I committed) the counting is done only on particles that
are not identified as the leading lepton. BTW the effect is very small
(0.3-0.5%).
The second was that all tracks (not only pions) were considered when
reconstructing the partially reconstructed missing mass via soft pion (by
mistake). I fixed this. Again the effect is very small.
I put these chages in recoilNtp. If you agree they can be moved to
VubAnalysisCode as well.
Daniele
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Date: Thu, 22 Apr 2004 14:08:59 -0700 (PDT)
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Subject: Update of /afs/slac.stanford.edu/g/babar/repo/VubAnalysis
Distribution: CVSNEWS
I've just committed some changes in my source files. The log message was:
Name: daniele **********************************
Update of /afs/slac.stanford.edu/g/babar/repo/VubAnalysis
In directory bbr-ucsdpc14:/a/sulky09/AWG6/Recoil/testrelease/VubAnalysis
Modified Files:
recoilNtp.cc recoilNtp.hh
Log Message:
- fix ispion flag. Bug was affecting ngoodPi list (also used to compute
partially reconstructed missing mass). Sometimes no PID rejection was
applied to tracks
- fix kaon rejection. As it was a track previously considered as the
leading muon could be used to count the number of kaons in the
X system
- fix kaon ID request for exclusive modes. Not done when reconstructing
resonances, can be done cutting on nkp parameter.
First two items affect also inclusive analysis
