Jet energy resolution in proton-proton collisions at √s=7 TeV recorded in 2010 with the ATLAS detector

The measurement of the jet energy resolution is
presented using data recorded with the
ATLAS
detector in
proton-proton collisions at
√
s
=
7 TeV. The sample corre-
sponds to an integrated luminosity of 35 pb
−
1
. Jets are re-
constructed from energy deposits measured by the calorime-
ters and calibrated using different jet calibration schemes.
The jet energy resolution is measured with two different in
situ methods which are found to be in agreement within un-
certainties. The total uncertainties on these measurements
range from 20 % to 10 % for jets within
|
y
|
<
2
.
8 and with
transverse momenta increasing from 30 GeV to 500 GeV.
Overall, the Monte Carlo simulation of the jet energy reso-
lution agrees with the data within 10 %.