• We didn't have any good data on the btagging efficiency or background rate as a function of eta.

And the correlation:

It is probably best to use this dependency but the numbers we got from the Higgs/SUSY working group report.

• We were also trying to figure out what the number of interactions were as a function of luminosity (click to see the complete view).

The 2E32 is the goal for the Tevatron for the first part of Run 2 (our current best is 3.96E31). The plot is the Poisson distribution -- you can see the average is about 5 interactions or so.

• I've not found anything about the jet resolution as a function of underlying event. I've sent email to an expert.