A layer correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test

E. Abat...[et al.]; J.M. Abdallah; T. Addy; Mogens Dam; Jørn Dines Hansen; Peter Henrik Hansen; Esben Bryndt Klinkby; Troels Christian Petersen

doi:10.1088/1748-0221/6/06/P06001

A layer correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test

E. Abat...[et al.], J.M. Abdallah, T. Addy, Mogens Dam, Jørn Dines Hansen, Peter Henrik Hansen, Esben Bryndt Klinkby, Troels Christian Petersen

Abstract

A new method for calibrating the hadron response of a segmented calorimeter is developed and successfully applied to beam test data. It is based on a principal component analysis of energy deposits in the calorimeter layers, 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 calorimeters of the ATLAS experiment 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 20GeV and 180GeV, the particle energy is reconstructed within 3% and the energy resolution is improved by between 11% and 25% compared to the resolution at the electromagnetic scale.

Original language	English
Journal	Journal of Instrumentation
Volume	6
Pages (from-to)	P06001
ISSN	1748-0221
DOIs	https://doi.org/10.1088/1748-0221/6/06/P06001
Publication status	Published - 1 Jun 2011

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10.1088/1748-0221/6/06/P06001

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title = "A layer correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test",

abstract = "A new method for calibrating the hadron response of a segmented calorimeter is developed and successfully applied to beam test data. It is based on a principal component analysis of energy deposits in the calorimeter layers, 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 calorimeters of the ATLAS experiment 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 20GeV and 180GeV, the particle energy is reconstructed within 3% and the energy resolution is improved by between 11% and 25% compared to the resolution at the electromagnetic scale.",

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year = "2011",

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doi = "10.1088/1748-0221/6/06/P06001",

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TY - JOUR

T1 - A layer correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test

AU - Abat...[et al.], E.

AU - Abdallah, J.M.

AU - Addy, T.

AU - Dam, Mogens

AU - Hansen, Jørn Dines

AU - Hansen, Peter Henrik

AU - Klinkby, Esben Bryndt

AU - Petersen, Troels Christian

PY - 2011/6/1

Y1 - 2011/6/1

N2 - A new method for calibrating the hadron response of a segmented calorimeter is developed and successfully applied to beam test data. It is based on a principal component analysis of energy deposits in the calorimeter layers, 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 calorimeters of the ATLAS experiment 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 20GeV and 180GeV, the particle energy is reconstructed within 3% and the energy resolution is improved by between 11% and 25% compared to the resolution at the electromagnetic scale.

AB - A new method for calibrating the hadron response of a segmented calorimeter is developed and successfully applied to beam test data. It is based on a principal component analysis of energy deposits in the calorimeter layers, 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 calorimeters of the ATLAS experiment 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 20GeV and 180GeV, the particle energy is reconstructed within 3% and the energy resolution is improved by between 11% and 25% compared to the resolution at the electromagnetic scale.

U2 - 10.1088/1748-0221/6/06/P06001

DO - 10.1088/1748-0221/6/06/P06001

M3 - Journal article

SN - 1748-0221

VL - 6

SP - P06001

JO - Journal of Instrumentation

JF - Journal of Instrumentation

ER -

A layer correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test

Abstract

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