ORCID Profile
0000-0002-5666-2965
Current Organisation
Institute of Nuclear Physics, Polish Academy of Sciences
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Publisher: Springer Science and Business Media LLC
Date: 12-2020
DOI: 10.1140/EPJC/S10052-020-08477-8
Abstract: The jet energy scale, jet energy resolution, and their systematic uncertainties are measured for jets reconstructed with the ATLAS detector in 2012 using proton–proton data produced at a centre-of-mass energy of 8 TeV with an integrated luminosity of $$20 \\, \\hbox {fb}^{-1}$$ 20 fb - 1 . Jets are reconstructed from clusters of energy depositions in the ATLAS calorimeters using the anti- $$k_t$$ k t algorithm. A jet calibration scheme is applied in multiple steps, each addressing specific effects including mitigation of contributions from additional proton–proton collisions, loss of energy in dead material, calorimeter non-compensation, angular biases and other global jet effects. The final calibration step uses several in situ techniques and corrects for residual effects not captured by the initial calibration. These analyses measure both the jet energy scale and resolution by exploiting the transverse momentum balance in $$\\gamma $$ γ + jet, Z + jet, dijet, and multijet events. A statistical combination of these measurements is performed. In the central detector region, the derived calibration has a precision better than 1% for jets with transverse momentum $$150 \\, \\hbox {GeV} p_{{\\mathrm {T}}} $$ 150 GeV p T 1500 GeV, and the relative energy resolution is $$(8.4\\pm 0.6)\\%$$ ( 8.4 ± 0.6 ) % for $$p_{{\\mathrm {T}}}= 100 \\, \\hbox {GeV}$$ p T = 100 GeV and $$(23\\pm 2)\\%$$ ( 23 ± 2 ) % for $$p_{{\\mathrm {T}}}= 20 \\, \\hbox {GeV}$$ p T = 20 GeV . The calibration scheme for jets with radius parameter $$R=1.0$$ R = 1.0 , for which jets receive a dedicated calibration of the jet mass, is also discussed.
Publisher: Elsevier BV
Date: 07-2022
Publisher: Elsevier BV
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Publisher: Springer Science and Business Media LLC
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Publisher: Springer Science and Business Media LLC
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Publisher: Springer Science and Business Media LLC
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Publisher: Springer Science and Business Media LLC
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Publisher: Elsevier BV
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Publisher: Elsevier BV
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Publisher: Elsevier BV
Date: 09-2018
Publisher: Springer Science and Business Media LLC
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Publisher: Elsevier BV
Date: 02-2021
Publisher: Springer Science and Business Media LLC
Date: 03-2018
Publisher: Elsevier BV
Date: 05-2021
Publisher: Elsevier BV
Date: 08-2018
Publisher: Elsevier BV
Date: 2022
Publisher: Springer Science and Business Media LLC
Date: 11-2017
Publisher: Springer Science and Business Media LLC
Date: 14-08-2017
DOI: 10.1038/NPHYS4208
Publisher: Springer Science and Business Media LLC
Date: 06-2018
Location: Poland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Jan Godlewski.