TY - JOUR
T1 - In situ calibration of large-radius jet energy and mass in 13 TeV proton–proton collisions with the ATLAS detector
AU - Aaboud, M
AU - Åkesson, Torsten
AU - Bocchetta, Simona
AU - Corrigan, Eric
AU - Doglioni, Caterina
AU - Gregersen, Kristian
AU - Brottmann Hansen, Eva
AU - Hedberg, Vincent
AU - Jarlskog, Göran
AU - Kalderon, Charles
AU - Kellermann, Edgar
AU - Konya, Balazs
AU - Lytken, Else
AU - Mankinen, Katja
AU - Mjörnmark, Ulf
AU - Mullier, Geoffrey
AU - Pöttgen, Ruth
AU - Poulsen, Trine
AU - Smirnova, Oxana
AU - Zwalinski, L
AU - ATLAS Collaboration
N1 - Export Date: 21 February 2019
PY - 2019
Y1 - 2019
N2 - The response of the ATLAS detector to large-radius jets is measured in situ using 36.2 fb - 1 of s=13 TeV proton–proton collisions provided by the LHC and recorded by the ATLAS experiment during 2015 and 2016. The jet energy scale is measured in events where the jet recoils against a reference object, which can be either a calibrated photon, a reconstructed Z boson, or a system of well-measured small-radius jets. The jet energy resolution and a calibration of forward jets are derived using dijet balance measurements. The jet mass response is measured with two methods: using mass peaks formed by W bosons and top quarks with large transverse momenta and by comparing the jet mass measured using the energy deposited in the calorimeter with that using the momenta of charged-particle tracks. The transverse momentum and mass responses in simulations are found to be about 2–3% higher than in data. This difference is adjusted for with a correction factor. The results of the different methods are combined to yield a calibration over a large range of transverse momenta (p T ). The precision of the relative jet energy scale is 1–2% for 200GeV<pT<2TeV, while that of the mass scale is 2–10%. The ratio of the energy resolutions in data and simulation is measured to a precision of 10–15% over the same p T range. © 2019, CERN for the benefit of the ATLAS collaboration.
AB - The response of the ATLAS detector to large-radius jets is measured in situ using 36.2 fb - 1 of s=13 TeV proton–proton collisions provided by the LHC and recorded by the ATLAS experiment during 2015 and 2016. The jet energy scale is measured in events where the jet recoils against a reference object, which can be either a calibrated photon, a reconstructed Z boson, or a system of well-measured small-radius jets. The jet energy resolution and a calibration of forward jets are derived using dijet balance measurements. The jet mass response is measured with two methods: using mass peaks formed by W bosons and top quarks with large transverse momenta and by comparing the jet mass measured using the energy deposited in the calorimeter with that using the momenta of charged-particle tracks. The transverse momentum and mass responses in simulations are found to be about 2–3% higher than in data. This difference is adjusted for with a correction factor. The results of the different methods are combined to yield a calibration over a large range of transverse momenta (p T ). The precision of the relative jet energy scale is 1–2% for 200GeV<pT<2TeV, while that of the mass scale is 2–10%. The ratio of the energy resolutions in data and simulation is measured to a precision of 10–15% over the same p T range. © 2019, CERN for the benefit of the ATLAS collaboration.
U2 - 10.1140/epjc/s10052-019-6632-8
DO - 10.1140/epjc/s10052-019-6632-8
M3 - Article
SN - 1434-6044
VL - 79
JO - European Physical Journal C
JF - European Physical Journal C
IS - 2
M1 - 135
ER -