Hi,
this is what I get: I do not see any difference for the intpur after these
cuts for the D0 and D*+ seeds and small differences for the others:
D+ seed : the intpurB0 has a RMS of 9.023 rather than of 9.024.
D*0 seed : we have 108 entries rather than 109, intpurChB has a mean and
RMS of 52.93 and 5.371 instead of 52.95 and 5.351. In both of these cases
the difference is in the pur<0.1 region.
(First numbers are from my files, second numbers from yours.)
Kerstin
On Mon, 10 Nov 2003, Riccardo Faccini wrote:
> the typical purity cut is, seed by seed,
> ipurDstar 0.24
> ipurDc 0.09
> ipurDstar0 0.08
> ipurD0 0.09
> so it might well be that after the cuts there is no difference. Can you
> try and apply these cuts?
> 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" W.D.
>
> On Mon, 10 Nov 2003, Kerstin Tackmann wrote:
>
> >
> > Hi Ric,
> >
> > I had a look at these variables in the 2000 file.
> > For the pur, the differences are below 0.1 for both charged and neutral B
> > and for intpur the differences are between 35 and 40 for neutral B and
> > between 55 and 60 for charged B. Does this make sense?
> >
> > Thanks,
> > Kerstin
> >
> >
> > On Mon, 10 Nov 2003, Riccardo Faccini wrote:
> >
> > > Hi Kerstin,
> > > my bet is that the differences are due to small fixes to the semiexcl
> > > algorithm that were done in time. The differences should concentrate at
> > > low purities. can you please compare the purB0 and intpurB0 (and ChB
> > > correspondingly) distributions to see where the differences are ?
> > > they do no more look worrisome to me
> > > 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" W.D.
> > >
> > > On Mon, 10 Nov 2003, Kerstin Tackmann wrote:
> > >
> > > >
> > > > Hello,
> > > >
> > > > after correcting the pidtables link we are still seing small differences
> > > > for the 2000 file: 925 overall entries instead of 926, 644 entries in
> > > > modeB0 instead of 632 and 615 entries in modeChB instead of 618.
> > > >
> > > > What might these differences be due to? Could these result from different
> > > > random number seeds for the pid killing?
> > > >
> > > > Do I have to adjust the tables link for the tracking efficiency as well?
> > > >
> > > > Thanks,
> > > > Kerstin
> > > >
> > > >
> > >
> >
>
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