In the estimates of the 2006 trigger+reconstruction bias there is a single Pythia jet which has a large effect on our calculation.  We obviously have finite statistics and so the effect of a low Q^2 events trickling into a high Pt jet bin will have a large effect from weighting.  The question posed here is whether or not our bias estimate would more accurately correspond to reality if we remove this single event or keep it in.

The particular jet falls into the 32.2193-39.6297 GeV Pythia jet bin.  This jet does not however pass all the requirements for any of the 3 main triggers, so we don't see it in Geant HT2, HTTP, or JP1 jet bins.  Jet characteristics:

pyth-JetPt=33.5883,  geant-JetPt=36.906 

neutral Energy=0.370826,   highTrack Pt=11.6563,    highTowEt=8.02877

nTowers=6,    nTracks=2

hardPt=4.333

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Update: more information about this event

- this event did not fire the trigger simulator because it did not fire the BBC trigger simulator.  It passed all relevant BEMC and L2 tests.

- Towers: 1297 (8.0 GeV), 1296 (3.3 GeV), 1336 (1.3 GeV), 1277 (0.46 GeV), 1316 (0.4 GeV), 1276 (0.3 GeV)

- Tracks: 11.7 GeV/c, 10.9 GeV/c 

- anti-charm - gluon interaction:  a ton of gluons leading to a mess of hadrons, energetic particles without any daughters in the pythia record include:

       - PI- (11.3 GeV), (23.9 GeV)

       - PI+ (12.4 GeV), (42.6 GeV)

       - neutron (11.6 GeV)

       - K- (8.4 GeV)

       - LAMBDA^0 (21.8 GeV)

       - PI^0 (5.3 GeV)

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The first few figures below include this event:

Now, after I remove this event and replot the same figures as above, we see:

I propose that we remove this event to calculate the biases in the sample, but I am of course open to disagreements and discussion.