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Hi Vera, > Thanks Daniele, > this confirms what Urs had shown before. > I did not find the table you referred to. Can > you please specify this more clearly? I added the plots with the old selection in the same page http://www.slac.stanford.edu/~daniele/vub/GTVL_AS.html so it is easier to be compared. > > Also, did you include the smearing of tracks and neutrals > foe SP3 and SP4 as we discussed yesterday? I have included all the possibile smearings, except the SP3 neutral smearing (the kaon PID killing is also in). Daniele > Thanks > Vera > > --------------------------------------------------------------------- > Vera G. Luth phone: 650 926 2702 > SLAC-MS 95 fax: 650 926 2657 > Stanford, CA 94309 > USA e-mail: [log in to unmask] > --------------------------------------------------------------------- > > -----Original Message----- > From: Del Re, Daniele > Sent: Friday, June 07, 2002 11:28 AM > To: vub-recoil > Subject: GTVL track selection plots > > > > Hi all, > > I produced the comparison plots for the new track selection > > you find the results in the page: > > http://www.slac.stanford.edu/~daniele/vub/GTVL_AS.html > > and you can compare with the table in the page > > http://www.slac.stanford.edu/~daniele/vub/disagree.html > > for the old selection (sometimes the chisquare could be screwed up > because of bad mes fit with low stat) > > My comments are: > > - improvement in N charged and Qtot > - small improvement in mm2 > - nneu same level of disagreement (expected) > - improvement in mxhad > - mxhadfit: same level of comparison > > my final comment is that selection seems to be fine and actually > can improve the result. I am not sure that we are using the right > tables for the kinematic fit now. If not, results will be better in > the future once we will plug in the right tables. > > I have another comment: > > actually in the generic MC we don't have the same ratio Bch/B0 > (2 for generic MC and 1.7 for data). This for sure affects the > Ncharged, qtot and Mx distributions. I will redo the comparison > with the right balance. > > Daniele >