Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector

The reconstruction and calibration algorithms used to calculate missing transverse momentum (ETmiss) with the ATLAS detector exploit energy deposits in the calorimeter and tracks reconstructed in the inner detector as well as the muon spectrometer. Various strategies are used to suppress effects ari...

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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:
Física
Emiss T
Missing transverse momentum
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87253
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87253
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Emiss T
Missing transverse momentum
spellingShingle Física
Emiss T
Missing transverse momentum
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector
topic_facet Física
Emiss T
Missing transverse momentum
description The reconstruction and calibration algorithms used to calculate missing transverse momentum (ETmiss) with the ATLAS detector exploit energy deposits in the calorimeter and tracks reconstructed in the inner detector as well as the muon spectrometer. Various strategies are used to suppress effects arising from additional proton–proton interactions, called pileup, concurrent with the hard-scatter processes. Tracking information is used to distinguish contributions from the pileup interactions using their vertex separation along the beam axis. The performance of the ETmiss reconstruction algorithms, especially with respect to the amount of pileup, is evaluated using data collected in proton–proton collisions at a centre-of-mass energy of 8 TeV during 2012, and results are shown for a data sample corresponding to an integrated luminosity of 20.3fb-1. The simulation and modelling of ETmiss in events containing a Z boson decaying to two charged leptons (electrons or muons) or a W boson decaying to a charged lepton and a neutrino are compared to data. The acceptance for different event topologies, with and without high transverse momentum neutrinos, is shown for a range of threshold criteria for ETmiss , and estimates of the systematic uncertainties in the ETmiss measurements are presented.
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 Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector
title_short Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector
title_full Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector
title_fullStr Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector
title_full_unstemmed Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton–proton collisions in the ATLAS detector
title_sort performance of algorithms that reconstruct missing transverse momentum in √s = 8 tev proton–proton collisions in the atlas detector
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87253
work_keys_str_mv AT alconadaverzinimariajosefina performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
AT alonsofrancisco performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
AT arduhfranciscoanuar performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
AT dovamariateresa performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
AT monticellifernandogabriel performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
AT wahlberghernanpablo performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
AT theatlascollaboration performanceofalgorithmsthatreconstructmissingtransversemomentumins8tevprotonprotoncollisionsintheatlasdetector
bdutipo_str Repositorios
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