The figure above compares the inclusive jet cross-sections with (red) and without (black) the underlying event correction applied. As excpected the underlying event plays a larger role in the lower jet pT regime and is rather significant. It alters the cross-section by 20-40% in the jet pT range of 15-50 GeV and then flattens out to ~10% at the highest pT bins. For clarity I have plotted down to 10 GeV, so you should ignore the first three points as they are below trigger threshold of ~13 GeV for the JP2 trigger. 

Questions:

1) ~13% uncertainty on the luminosity from the vernier scan.  Limiting factor in contraining PDFs. 
 
2)This analysis currently uses the Perugia0 tune, while agrees extremly well with Run 9 data, is rather out dated and should an embedding sample be produced with the Perugia2012 tune?

Next Steps: Dijet cross section with the ue correction applied.