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Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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2013 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 73, no 3, 2305- p.Article in journal (Refereed) Published
Abstract [en]

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 root 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.

Place, publisher, year, edition, pages
2013. Vol. 73, no 3, 2305- p.
Keyword [en]
End-Cap Calorimeter, Barrel Calorimeter, Beam Tests
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-123699DOI: 10.1140/epjc/s10052-013-2305-1ISI: 000318290600002Scopus ID: 2-s2.0-84876447844OAI: oai:DiVA.org:kth-123699DiVA: diva2:628714
Funder
Swedish Research Council
Note

QC 20130614. Author count 3054

Available from: 2013-06-14 Created: 2013-06-14 Last updated: 2017-12-06Bibliographically approved

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Strandberg, Jonas

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