Aaboud, M;
Aad, G;
Abbott, B;
Abdallah, J;
Abdinov, O;
Abeloos, B;
Abidi, SH;
... Bella, LA; + view all
(2017)
Jet reconstruction and performance using particle flow with the ATLAS Detector.
European Physical Journal C
, 77
, Article 466. 10.1140/epjc/s10052-017-5031-2.
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Abstract
This paper describes the implementation and performance of a particle flow algorithm applied to 20.2 fb - 1 of ATLAS data from 8 TeV proton–proton collisions in Run 1 of the LHC. The algorithm removes calorimeter energy deposits due to charged hadrons from consideration during jet reconstruction, instead using measurements of their momenta from the inner tracker. This improves the accuracy of the charged-hadron measurement, while retaining the calorimeter measurements of neutral-particle energies. The paper places emphasis on how this is achieved, while minimising double-counting of charged-hadron signals between the inner tracker and calorimeter. The performance of particle flow jets, formed from the ensemble of signals from the calorimeter and the inner tracker, is compared to that of jets reconstructed from calorimeter energy deposits alone, demonstrating improvements in resolution and pile-up stability.
| Type: | Article |
|---|---|
| Title: | Jet reconstruction and performance using particle flow with the ATLAS Detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-017-5031-2 |
| Publisher version: | http://doi.org/10.1140/epjc/s10052-017-5031-2 |
| Language: | English |
| Additional information: | © 2017, CERN for the benefit of the ATLAS collaboration. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1550535 |
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