Request for Preliminary: Jet Mass (pp)
Updated on Wed, 2019-10-02 20:18. Originally created by imooney on 2019-03-08 10:46.
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Figure 1: Fully corrected measurement of the jet mass (M) in p+p collisions at \sqrt{s} = 200 GeV for anti-kT charged + neutral jets plotted differentially in bins of pT: 20 - 30, 30 - 45 GeV/c. The fully corrected data is represented by the red star markers, with systematic uncertainties displayed as a shaded red band. The statistical errors have been enlarged by hand to account for a mishandling of statistics in the RooUnfold package. After this correction, all error bars remain smaller than the star markers. The fully corrected data is compared here to LO MC event generators PYTHIA-8 (Monash Tune, solid black line), PYTHIA-6 (Perugia Tune, solid blue line), HERWIG-7 (EE4C Tune, solid magenta line), along with a ratio, below, of each of these MCs to data.
Observations:
The jet mass increases with increasing pT
PYTHIA-6 predicts the data in most cases; HERWIG-7 underpredicts; PYTHIA-8 overpredicts.
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