Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC - INSPIRE

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Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

ATLAS

Collaboration

Mar, 2012

24 pages

Published in:

Eur.Phys.J.C 73 (2013) 3, 2305

Published: Mar 2, 2013

e-Print:

1203.1302 [hep-ex]

DOI:

10.1140/epjc/s10052-013-2305-1

Report number:

CERN-PH-EP-2012-005

Experiments:

CERN-LHC-ATLAS

View in:

reference search176 citations

Citations per year

Abstract: (arXiv)

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.

Note:

24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal C

Calorimeter
jet
ATLAS
jet: energy
numerical calculations: Monte Carlo
p p: scattering
calorimeter: energy resolution
CERN LHC Coll
ATLAS

References(24)

Figures(21)

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