--
AlexanderFedotov - 24-Nov-2009
Average and Peak ET of probe jet vs iEta |
It was found in
in the
Hcal Dijet Logbook page 1
(
Sec.4.2.1 )
from the ET_peak / Pthat_threshold for tag jets in 2009 sample (PThat > 30)
that the the uncorrected tag jet energy is
underestimated by factor ~2.
And the "unbiased" HF correction was found to be 0.50 (Sec.5.5).
=> It looks like the jet energy scale in HF is roughly correct.
Puprose of this study: try to see here the jet scale recovery for probe jets as going from barrel region to HF,
by looking at the
evolution of the ET(probe jet) distribution.
Input sample: 2009 PThat>30, 10 TeV Version 1, one root file
QCD_Pt30_10TeV.hi_100.root
with 70946 evs
Plots made interactively with the
script .
The < ET > vs iEta plot:
Original size: gif , eps
Original size: gif , eps
- TagJet_ET_vs_ProbeJet_iEta_at_etaTag_lt_1.gif: