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.
>
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