Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions

Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet reconstruction, pile-up mitigation techniques...

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Detalles Bibliográficos
Autores principales: Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Orellana, Gonzalo Enrique, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Física
Particle physics
Physics
Atlas (topology)
Parton
Top quark
Kinematics
Boson
Large hadron collider
Detector
Substructure
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125108
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125108
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Particle physics
Physics
Atlas (topology)
Parton
Top quark
Kinematics
Boson
Large hadron collider
Detector
Substructure
spellingShingle Física
Particle physics
Physics
Atlas (topology)
Parton
Top quark
Kinematics
Boson
Large hadron collider
Detector
Substructure
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions
topic_facet Física
Particle physics
Physics
Atlas (topology)
Parton
Top quark
Kinematics
Boson
Large hadron collider
Detector
Substructure
description Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet reconstruction, pile-up mitigation techniques and jet grooming algorithms motivate an optimisation of large-radius jet reconstruction for ATLAS. In this paper, this optimisation procedure is presented, and the performance of a wide range of large-radius jet definitions is compared. The relative performance of these jet definitions is assessed using metrics such as their pileup stability, ability to identify hadronically decaying W bosons and top quarks with large transverse momenta. A new type of jet input object, called a ‘unified flow object’ is introduced which combines calorimeter- and inner-detector-based signals in order to achieve optimal performance across a wide kinematic range. Large-radius jet definitions are identified which significantly improve on the current ATLAS baseline definition, and their modelling is studied using pp collisions recorded by the ATLAS detector at √s=13TeV during 2017.
format Articulo
Articulo
author Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alonso, Francisco
title Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions
title_short Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions
title_full Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions
title_fullStr Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions
title_full_unstemmed Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton–proton collisions
title_sort optimisation of large-radius jet reconstruction for the atlas detector in 13 tev proton–proton collisions
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/125108
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