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

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Abstract

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.
Original languageUnknown
Pages (from-to)2305
JournalEuropean Physical Journal C
Volume73
Issue number3
DOIs
Publication statusPublished - 1 Jan 2013

Keywords

    Cite this

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    title = "Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC",
    abstract = "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.",
    keywords = "END-CAP CALORIMETER, BARREL CALORIMETER, BEAM TESTS",
    author = "Wemans, {Andr{\'e} Jo{\~a}o Maur{\'i}cio Leit{\~a}o do Valle}",
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    TY - JOUR

    T1 - Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

    AU - Wemans, André João Maurício Leitão do Valle

    PY - 2013/1/1

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    N2 - 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.

    AB - 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.

    KW - END-CAP CALORIMETER

    KW - BARREL CALORIMETER

    KW - BEAM TESTS

    U2 - 10.1140/epjc/s10052-013-2305-1

    DO - 10.1140/epjc/s10052-013-2305-1

    M3 - Article

    VL - 73

    SP - 2305

    JO - European Physical Journal C

    JF - European Physical Journal C

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