TY  - JOUR
AU  - ATLAS Collaboration (Abat, E. et al
AU  - Bernabeu Verdú, J.
AU  - Castillo Gimenez, V.
AU  - Costa, M. J.
AU  - Escobar, C.
AU  - Ferrer, A.
AU  - Garcia, C.
AU  - Gonzalez-Sevilla, S.
AU  - Higon-Rodriguez, E.
AU  - Lacasta, C.
AU  - Marti-Garcia, S.
AU  - Mitsou, V. A.
AU  - Ruiz, A.
AU  - Solans, C.
AU  - Valero, A.
AU  - Valls Ferrer, J. A.
PY  - 2011
DA  - 2011//
TI  - A layer correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test
T2  - J. Instrum.
JO  - Journal of Instrumentation
SP  - P06001 - 35pp
VL  - 6
PB  - Iop Publishing Ltd
KW  - Calorimeter methods
KW  - Pattern recognition
KW  - cluster finding
KW  - calibration and fitting methods
KW  - Calorimeters
KW  - Detector modelling and simulations I (interaction of radiation with matter
KW  - interaction of photons with matter
KW  - interaction of hadrons with matter
KW  - etc)
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 20 GeV and 180 GeV, 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.
SN  - 1748-0221
UR  - http://arxiv.org/abs/1012.4305
UR  - https://doi.org/10.1088/1748-0221/6/06/P06001
DO  - 10.1088/1748-0221/6/06/P06001
LA  - English
N1  - WOS:000294492600001
ID  - ATLASCollaborationAbat_etal2011
ER  -