Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV

This paper describes the trigger and offline reconstruction, identification and energy calibration algorithms for hadronic decays of tau leptons employed for the data collected from pp collisions in 2012 with the ATLAS detector at the LHC center-of-mass energy √s = 8 TeV. The performance of these al...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Física
Proton–proton collisions
Hadronic decays
Tau leptons
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86871
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86871
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Proton–proton collisions
Hadronic decays
Tau leptons
spellingShingle Física
Proton–proton collisions
Hadronic decays
Tau leptons
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV
topic_facet Física
Proton–proton collisions
Hadronic decays
Tau leptons
description This paper describes the trigger and offline reconstruction, identification and energy calibration algorithms for hadronic decays of tau leptons employed for the data collected from pp collisions in 2012 with the ATLAS detector at the LHC center-of-mass energy √s = 8 TeV. The performance of these algorithms is measured in most cases with Z decays to tau leptons using the full 2012 dataset, corresponding to an integrated luminosity of 20.3 fb-1. An uncertainty on the offline reconstructed tau energy scale of 2–4 %, depending on transverse energy and pseudorapidity, is achieved using two independent methods. The offline tau identification efficiency is measured with a precision of 2.5 % for hadronically decaying tau leptons with one associated track, and of 4 % for the case of three associated tracks, inclusive in pseudorapidity and for a visible transverse energy greater than 20 GeV. For hadronic tau lepton decays selected by offline algorithms, the tau trigger identification efficiency is measured with a precision of 2–8 %, depending on the transverse energy. The performance of the tau algorithms, both offline and at the trigger level, is found to be stable with respect to the number of concurrent proton–proton interactions and has supported a variety of physics results using hadronically decaying tau leptons at ATLAS.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV
title_short Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV
title_full Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV
title_fullStr Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV
title_full_unstemmed Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8TeV
title_sort identification and energy calibration of hadronically decaying tau leptons with the atlas experiment in pp collisions at √s=8tev
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/86871
work_keys_str_mv AT alconadaverzinimariajosefina identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT alonsofrancisco identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT anduagaxabiersebastian identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT arduhfranciscoanuar identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT dovamariateresa identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT monticellifernandogabriel identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT wahlberghernanpablo identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
AT theatlascollaboration identificationandenergycalibrationofhadronicallydecayingtauleptonswiththeatlasexperimentinppcollisionsats8tev
bdutipo_str Repositorios
_version_ 1764820489404940292

Ejemplares similares