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Local hadron calibration with ATLAS

The method of Local Hadron Calibration is used in ATLAS as one of the two major calibration schemes for the reconstruction of jets and missing transverse energy. The method starts from noise suppressed clusters and corrects them for non-compensation effects and for losses due to noise threshold and...

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Autor principal: Giovannini, P
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:http://cds.cern.ch/record/1284955
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author Giovannini, P
author_facet Giovannini, P
author_sort Giovannini, P
collection CERN
description The method of Local Hadron Calibration is used in ATLAS as one of the two major calibration schemes for the reconstruction of jets and missing transverse energy. The method starts from noise suppressed clusters and corrects them for non-compensation effects and for losses due to noise threshold and dead material. Jets are reconstructed on the calibrated clusters and are then corrected for out of cone effects. The performance of the corrections applied to the calorimeter clusters is tested with detailed GEANT4 information. Results obtained with this procedure are discussed both for single pion simulations and for di-jet simulations. The calibration schema is validated on data, by comparing the calibrated cluster energy with data and Mote Carlo simulations. Preliminary results obtained with sqrt(s)=900 GeV are presented. The agreement between data and Monte Carlo is inside 5% for the final cluster scale.
id cern-1284955
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12849552019-09-30T06:29:59Zhttp://cds.cern.ch/record/1284955engGiovannini, PLocal hadron calibration with ATLASDetectors and Experimental TechniquesThe method of Local Hadron Calibration is used in ATLAS as one of the two major calibration schemes for the reconstruction of jets and missing transverse energy. The method starts from noise suppressed clusters and corrects them for non-compensation effects and for losses due to noise threshold and dead material. Jets are reconstructed on the calibrated clusters and are then corrected for out of cone effects. The performance of the corrections applied to the calorimeter clusters is tested with detailed GEANT4 information. Results obtained with this procedure are discussed both for single pion simulations and for di-jet simulations. The calibration schema is validated on data, by comparing the calibrated cluster energy with data and Mote Carlo simulations. Preliminary results obtained with sqrt(s)=900 GeV are presented. The agreement between data and Monte Carlo is inside 5% for the final cluster scale.ATL-LARG-PROC-2010-008oai:cds.cern.ch:12849552010-08-14
spellingShingle Detectors and Experimental Techniques
Giovannini, P
Local hadron calibration with ATLAS
title Local hadron calibration with ATLAS
title_full Local hadron calibration with ATLAS
title_fullStr Local hadron calibration with ATLAS
title_full_unstemmed Local hadron calibration with ATLAS
title_short Local hadron calibration with ATLAS
title_sort local hadron calibration with atlas
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1284955
work_keys_str_mv AT giovanninip localhadroncalibrationwithatlas