Dijet invariant mass detector response and background fluctuation matrix for charged jets R=0.4 anchored to LHC17p,q

Scope: PWG
PWG-JE (Jets)
Energy
5.02 TeV
System
p-p
Figure Image
Figure Caption

Combined unfolding matrix for detector effects and background fluctuations for pp 5.02 TeV dijet mass spectrum. Created using ALICE Pythia8 jet-jet production

Detail description

The figure describes the response of the detector and background fluctuations combined. The detector response is formed by filling y-axis as the particle level dijet invariant mass and x-asis as the corresponding detector level dijet invariant mass. Background fluctuations are gathered from the data itself with rotated cones around leading and subleading jets. Combination is done by multiplying the background fluctuation matrix with detector response matrix. The MC which was used is LHC18b8, which is a Pythia8 Monash tune jet-jet production. Compared to the previous version of the same ALICE simulation figure, in addition to the background fluctuations, also background subtraction was added, maximum track cut was set to 100 GeV, jet area cut >0.6*pi*R^2, event selection cuts were updated, detector jets with pt>4*pt_hard were cut, and binning changed.