Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data

This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 <i>pp</i&g...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
Electrones
ATLAS detector
la̵rge hadron collider
Medición
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79537
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-79537
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
Electrones
ATLAS detector
la̵rge hadron collider
Medición
spellingShingle Ciencias Exactas
Física
Electrones
ATLAS detector
la̵rge hadron collider
Medición
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
topic_facet Ciencias Exactas
Física
Electrones
ATLAS detector
la̵rge hadron collider
Medición
description This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 <i>pp</i> collision data produced by the LHC at √s = 8 TeV. The efficiency of these algorithms, together with the charge misidentification rate, is measured in data and evaluated in simulated samples using electrons from <i>Z → ee, Z → eeγ</i> and <i>J/ψ → ee</i> decays. For these efficiency measurements, the full recorded data set, corresponding to an integrated luminosity of 20.3 fb<sup>−1</sup>, is used. Based on a new reconstruction algorithm used in 2012, the electron reconstruction efficiency is 97% for electrons with E<sub>T</sub> = 15 GeV and 99% at E<sub>T</sub> = 50 GeV. Combining this with the efficiency of additional selection criteria to reject electrons from background processes or misidentified hadrons, the efficiency to reconstruct and identify electrons at the ATLAS experiment varies from 65 to 95%, depending on the transverse momentum of the electron and background rejection.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
title_short Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
title_full Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
title_fullStr Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
title_full_unstemmed Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
title_sort electron efficiency measurements with the atlas detector using 2012 lhc proton-proton collision data
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/79537
work_keys_str_mv AT alconadaverzinimariajosefina electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT alonsofrancisco electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT arduhfranciscoanuar electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT dovamariateresa electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT hoyajoaquin electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT monticellifernandogabriel electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT wahlberghernanpablo electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
AT theatlascollaboration electronefficiencymeasurementswiththeatlasdetectorusing2012lhcprotonprotoncollisiondata
bdutipo_str Repositorios
_version_ 1764820486869483521

Ejemplares similares