Trying to keep up with the white board changes:

The graphs, cross sections, branching ratios, and current TopView files are listed for SingleTopSignals, WbosonBackgrounds, TopBackgrounds, and QcD backgrounds.

Cross sections from https://twiki.cern.ch/twiki/bin/view/Atlas/TopReferences

The "Basic Cuts", which can also be found on the EventSelection page, follow. Note that the second jet cut is only at 25 GeV for low-luminosity studies; it is at 30 GeV for other studies. Also, an isolated muon or electron is defined to be a lepton where Etcone20 > 6:

cut parameter
exactly 1 isolated electron pT > 25 Gev
exactly 1 isolated muon pT > 20 Gev
isolated muon and electron abs(eta) < 2.5
no additional isolated electron or muon with pT > 10 Gev
no additional electron with 1.35 < abs(eta) < 1.65
MET > 20 Gev
number of jets 2<= n(jets) <= 4
first jet j(1) pT > 30 Gev
second jet j(2) pT > 30 Gev (or 25 Gev for early data)
third and fourth jets j(3,4) pT > 15 Gev
all four jets j(1,2,3,4) abs(eta) < 5.0
b tagged jets n(b-tag jets) >= 1
b tagged jets b-tag jets pT > 30 Gev
b tagged jets abs(eta) ≤ 2.5
trigger level object parameter
L1 e EM25i OR EMm60
L2 e e25i OR em60
EF e e25i OR em60
L1 mu MU20
L2 mu mu20
EF mu mu20

-- ChipBrock - 26 Jul 2007 -- JennyHolzbauer - 18 Sep 2007 - JennyHolzbauer - 30 Jan 2008
Topic attachments
I Attachment Action Size Date Who Comment
Wt-channel.pngpng Wt-channel.png manage 6.3 K 26 Jul 2007 - 14:00 ChipBrock  
s-channel.pngpng s-channel.png manage 2.4 K 26 Jul 2007 - 13:56 ChipBrock  
t-channel.pngpng t-channel.png manage 2.3 K 26 Jul 2007 - 12:35 ChipBrock  
Topic revision: r66 - 16 Oct 2009, TomRockwell
 

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