Performance of electron and photon triggers in ATLAS during LHC Run 2

Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton and heavy-ion collisions. To cope with a fourf...

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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: 2020
Materias:
Física
Physics
Electron
Photon
Nuclear physics
Atlas experiment
Large hadron collider
Detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126682
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-126682
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Physics
Electron
Photon
Nuclear physics
Atlas experiment
Large hadron collider
Detector
spellingShingle Física
Physics
Electron
Photon
Nuclear physics
Atlas experiment
Large hadron collider
Detector
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Performance of electron and photon triggers in ATLAS during LHC Run 2
topic_facet Física
Physics
Electron
Photon
Nuclear physics
Atlas experiment
Large hadron collider
Detector
description Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton and heavy-ion collisions. To cope with a fourfold increase of peak LHC luminosity from 2015 to 2018 (Run 2), to 2.1×1034cm-2s-1, and a similar increase in the number of interactions per beam-crossing to about 60, trigger algorithms and selections were optimised to control the rates while retaining a high efficiency for physics analyses. For proton–proton collisions, the single-electron trigger efficiency relative to a single-electron offline selection is at least 75% for an offline electron of 31 GeV, and rises to 96% at 60 GeV; the trigger efficiency of a 25 GeV leg of the primary diphoton trigger relative to a tight offline photon selection is more than 96% for an offline photon of 30 GeV. For heavy-ion collisions, the primary electron and photon trigger efficiencies relative to the corresponding standard offline selections are at least 84% and 95%, respectively, at 5 GeV above the corresponding trigger threshold.
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 Performance of electron and photon triggers in ATLAS during LHC Run 2
title_short Performance of electron and photon triggers in ATLAS during LHC Run 2
title_full Performance of electron and photon triggers in ATLAS during LHC Run 2
title_fullStr Performance of electron and photon triggers in ATLAS during LHC Run 2
title_full_unstemmed Performance of electron and photon triggers in ATLAS during LHC Run 2
title_sort performance of electron and photon triggers in atlas during lhc run 2
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/126682
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AT arduhfranciscoanuar performanceofelectronandphotontriggersinatlasduringlhcrun2
AT dovamariateresa performanceofelectronandphotontriggersinatlasduringlhcrun2
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bdutipo_str Repositorios
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