 |
 |
Hi Urs, I also guess that the fact that we are using PID killing destroys the original anticorrelation between kaon and muon tags, correct? ciao ric ______________________________________________________ Riccardo Faccini Universita' "La Sapienza" & I.N.F.N. Roma tel +39/06/49914798 Fax.: +39/06/4957697 http://www.slac.stanford.edu/~rfaccini Univ. La Sapienza. 2,Ple Aldo Moro, I-00185 Roma Dipartimento di Fisica "I don't understand what you say, but I believe I disagree" On Fri, 23 Apr 2004, Urs Langenegger wrote: > > Hoi Daniele, > > in principle muon ID already contains a veto on kaon ID (that was > built in to remove the kaon in-flight decays some time ago), so the > fact that you see a small effect is maybe by having a different veto > selector than what we use for kaon ID. > > I think the fix should be where the leading lepton is identified. It > is a "feature" that kaon ID overrides muon ID. > > I don't think it affects our signal. Muons that are kaons should not > enter the signal. Of course, it does affect the depleted sample. > > Cheers, > --U. >