First Set of Proposed Cuts

The following plots show the cuts I intend to use on my first iteration of the e/h discrimination code. These plots were generated using ppWprod from setC2 (row 11) for W events and mit0015>10 from set C4 (row 13) for QCD events. Details are here. All events in plots have reco vertex in range z=[-70,-50] and have a trigger patch ET > 20GeV. Furthermore the isolation cut plots have the added condition that the high tower does not fall in etabins 1-5 or 12. The W sample is in black and the QCD sample is in red.

Fig 1: Plot of the ratio of transverse energy in the 3x3 trigger patch to transverse energy of towers located inside a radius of 0.45. Cut: > 0.95.

Fig 2: Plot of the displacement between a track and the center of the high tower when there is only one track above 1GeV in a radius of 0.70. Cut: < 0.6.

Fig 3: Plot of the number of hit towers with energy above .8GeV that lie in the same sector as the trigger patch. Cut: < 6.

Fig 4: Plot of the number of hit strips in the U plane in the sector containing the trigger patch. Cut: < 48.

Fig 5: Plot of the energy in the post-shower layers of the 3x3 trigger patch. Cut < 0.04.

Fig 6: Plot of the ratio of energy in the post-shower layers of the 3x3 trigger patch to the total energy in the trigger patch. Cut: < 0.0005. Fig 7: Plot of the ratio of energy in the seven highest U strips under the 3x3 trigger patch to the energy in all the U strips under the trigger patch. Cut: > 0.7.

Fig 8: Plot of the ratio of the energy in the two highest towers in the 3x3 trigger patch to the energy in all towers of the trigger patch.