Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1
The reconstruction of the signal from hadrons and jets emerging from the proton–proton collisions at the Large Hadron Collider (LHC) and entering the ATLAS calorimeters is based on a three-dimensional topological clustering of individual calorimeter cell signals. The cluster formation follows cell s...
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| Format: | Article |
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Springer/Società Italiana di Fisica
2018
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| Online Access: | http://hdl.handle.net/1721.1/116466 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826208656095444992 |
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| author | Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E |
| author_sort | Taylor, Frank E |
| collection | MIT |
| description | The reconstruction of the signal from hadrons and jets emerging from the proton–proton collisions at the Large Hadron Collider (LHC) and entering the ATLAS calorimeters is based on a three-dimensional topological clustering of individual calorimeter cell signals. The cluster formation follows cell signal-significance patterns generated by electromagnetic and hadronic showers. In this, the clustering algorithm implicitly performs a topological noise suppression by removing cells with insignificant signals which are not in close proximity to cells with significant signals. The resulting topological cell clusters have shape and location information, which is exploited to apply a local energy calibration and corrections depending on the nature of the cluster. Topological cell clustering is established as a well-performing calorimeter signal definition for jet and missing transverse momentum reconstruction in ATLAS. |
| first_indexed | 2024-09-23T14:09:27Z |
| format | Article |
| id | mit-1721.1/116466 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:09:27Z |
| publishDate | 2018 |
| publisher | Springer/Società Italiana di Fisica |
| record_format | dspace |
| spelling | mit-1721.1/1164662022-10-01T19:32:13Z Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E The reconstruction of the signal from hadrons and jets emerging from the proton–proton collisions at the Large Hadron Collider (LHC) and entering the ATLAS calorimeters is based on a three-dimensional topological clustering of individual calorimeter cell signals. The cluster formation follows cell signal-significance patterns generated by electromagnetic and hadronic showers. In this, the clustering algorithm implicitly performs a topological noise suppression by removing cells with insignificant signals which are not in close proximity to cells with significant signals. The resulting topological cell clusters have shape and location information, which is exploited to apply a local energy calibration and corrections depending on the nature of the cluster. Topological cell clustering is established as a well-performing calorimeter signal definition for jet and missing transverse momentum reconstruction in ATLAS. National Science Foundation (U.S.) United States. Department of Energy 2018-06-21T14:03:48Z 2018-06-21T14:03:48Z 2017-07 2016-03 2017-09-19T14:47:19Z Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/116466 ATLAS Collaboration, et al. “Topological Cell Clustering in the ATLAS Calorimeters and Its Performance in LHC Run 1.” The European Physical Journal C, vol. 77, no. 7, July 2017. © 2017 CERN for the benefit of the ATLAS collaboration https://orcid.org/0000-0002-7586-7253 http://dx.doi.org/10.1140/epjc/s10052-017-5004-5 The European Physical Journal C Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ CERN for the benefit of the ATLAS collaboration application/pdf Springer/Società Italiana di Fisica TopicHub SCOAP3 |
| spellingShingle | Taylor, Frank E Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 |
| title | Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 |
| title_full | Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 |
| title_fullStr | Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 |
| title_full_unstemmed | Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 |
| title_short | Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 |
| title_sort | topological cell clustering in the atlas calorimeters and its performance in lhc run 1 |
| url | http://hdl.handle.net/1721.1/116466 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1 |