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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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79338
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id I19-R120-10915-79338
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
hadrons
jets
proton-proton collisions
ATLAS experiment
spellingShingle Ciencias Exactas
Física
hadrons
jets
proton-proton collisions
ATLAS experiment
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1
topic_facet Ciencias Exactas
Física
hadrons
jets
proton-proton collisions
ATLAS experiment
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 wellperforming calorimeter signal definition for jet and missing transverse momentum reconstruction in ATLAS.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title 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_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_sort topological cell clustering in the atlas calorimeters and its performance in lhc run 1
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/79338
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AT alonsofrancisco topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1
AT arduhfranciscoanuar topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1
AT dovamariateresa topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1
AT monticellifernandogabriel topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1
AT wahlberghernanpablo topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1
AT theatlascollaboration topologicalcellclusteringintheatlascalorimetersanditsperformanceinlhcrun1
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