A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)

A new method for calibrating the hadron response of a segmented calorimeter is developed. It is based on a principal component analysis of the calorimeter layer energy deposits, exploiting longitudinal shower development information to improve the measured energy resolution. Corrections for invisibl...

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Detalles Bibliográficos
Autor principal: Grahn, K-J
Lenguaje:eng
Publicado: 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1222306
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author Grahn, K-J
author_facet Grahn, K-J
author_sort Grahn, K-J
collection CERN
description A new method for calibrating the hadron response of a segmented calorimeter is developed. It is based on a principal component analysis of the calorimeter layer energy deposits, exploiting longitudinal shower development information to improve the measured energy resolution. Corrections for invisible hadronic energy and energy lost in dead material in front of and between the ATLAS calorimeters were calculated with simulated Geant4 Monte Carlo events and used to reconstruct the energy of pions impinging on the calorimeters during the 2004 Barrel Combined Beam Test at the CERN H8 area. For pion beams with energies between 20 and 180 GeV, the particle energy is reconstructed within 3% and the energy resolution is improved by about 20% compared to the electromagnetic scale.
id cern-1222306
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12223062019-09-30T06:29:59Zhttp://cds.cern.ch/record/1222306engGrahn, K-JA Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)Detectors and Experimental TechniquesA new method for calibrating the hadron response of a segmented calorimeter is developed. It is based on a principal component analysis of the calorimeter layer energy deposits, exploiting longitudinal shower development information to improve the measured energy resolution. Corrections for invisible hadronic energy and energy lost in dead material in front of and between the ATLAS calorimeters were calculated with simulated Geant4 Monte Carlo events and used to reconstruct the energy of pions impinging on the calorimeters during the 2004 Barrel Combined Beam Test at the CERN H8 area. For pion beams with energies between 20 and 180 GeV, the particle energy is reconstructed within 3% and the energy resolution is improved by about 20% compared to the electromagnetic scale.ATL-LARG-PROC-2009-019oai:cds.cern.ch:12223062009-11-16
spellingShingle Detectors and Experimental Techniques
Grahn, K-J
A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)
title A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)
title_full A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)
title_fullStr A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)
title_full_unstemmed A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)
title_short A Layer Correlation Technique for Pion Energy Calibration at the 2004 ATLAS Combined Beam Test (Conference record)
title_sort layer correlation technique for pion energy calibration at the 2004 atlas combined beam test (conference record)
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1222306
work_keys_str_mv AT grahnkj alayercorrelationtechniqueforpionenergycalibrationatthe2004atlascombinedbeamtestconferencerecord
AT grahnkj layercorrelationtechniqueforpionenergycalibrationatthe2004atlascombinedbeamtestconferencerecord

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