Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/63579
Título: | In situ calibration of large-radius jet energy and mass in 13TeVproton-proton collisions with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe ATLAS Collaboration |
Data: | 2019 |
Editora: | SpringerOpen |
Revista: | European Physical Journal C |
Citação: | Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., . . . Collaboration, A. (2019). In situ calibration of large-radius jet energy and mass in 13TeVproton-proton collisions with the ATLAS detector. European Physical Journal C, 79(2). doi: 10.1140/epjc/s10052-019-6632-8 |
Resumo(s): | 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 (pT). The precision of the relative jet energy scale is 1–2% for 200 GeV < pT < 2 TeV, 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 pT range. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/63579 |
DOI: | 10.1140/epjc/s10052-019-6632-8 |
ISSN: | 1434-6044 |
e-ISSN: | 1434-6052 |
Versão da editora: | https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-6632-8 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Aaboud2019_Article_InSituCalibrationOfLarge-radiu.pdf | 4,25 MB | Adobe PDF | Ver/Abrir |