In situ calibration of large-radius jet energy and mass in 13 TeV proton–proton collisions with the ATLAS detector

0521085 - FZÚ 2020 RIV DE eng J - Journal Article
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2891 authors
In situ calibration of large-radius jet energy and mass in 13 TeV proton–proton collisions with the ATLAS detector.
European Physical Journal C. Roč. 79, č. 2 (2019), s. 1-42, č. článku 135. ISSN 1434-6044. E-ISSN 1434-6052
Research Infrastructure: CERN-CZ - 90058
Institutional support: RVO:68378271
Keywords : ATLAS * CERN LHC Coll * experimental results * 13000 GeV-cms * numerical calculations: Monte Carlo * calorimeter * photon * dijet
OECD category: Particles and field physics
Impact factor: 4.389, year: 2019
Method of publishing: Open access

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.

Permanent Link: http://hdl.handle.net/11104/0305752