Subject: RE: New version
From: Greg Landsberg <landsberg@hep.brown.edu>
Date: Wed, 30 Aug 2006 19:41:32 -0400
To: 'pedro mercadante' <mercadan@fnal.gov>
CC: "'Sergio M. Lietti'" <lietti@fnal.gov>
Hi Pedro,
Looks good, thanks! A few questions:
1) On the set of plots showing two backgrounds and the signal, I'd rather
normalize everything to the predicted cross section (and use log plot if
needed). That would give a clear clue to as how much larger the backgrounds
are than the signal, and also how much they are reduced by the likesign
requirement.
2) Add a plot of likesign pair invariant mass distribution for the set with
likesign cut. (You can put it in the first row on p. 11, to the right of the
opposite-sign mass distribution.)
3) Judging by your plots, reasonable cuts to try would be:
- pT(leading lepton) < 30 GeV;
- M(opposite sign pair) < 80 GeV for every opposite-sign pair in the event;
- MET > 10-15 GeV;
- Njet(ET > 15 GeV) > 0 and Sum jet ET > 30 GeV;
Regards,
Greg