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Charged Pion Energy Reconstruction in the ATLAS Barrel Calorimeter

M. Bosman·Y. Kulchitsky·M. Nessi
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Abstract

The intrinsic performance of the ATLAS barrel and extended barrel calorimeters for the measurement of charged pions is presented. Pion energy scans (E = 20, 50, 200, 400 and 1000 GeV) at two pseudo-rapidity points ($η$ = 0.3 and 1.3) and pseudorapidity scans ($-0.2 < η< 1.8$) with pions of constant transverse energy ($E_T = 20$ and 50 GeV) are analysed. A simple approach, that accounts in first order for non-compensation and dead material effects, is used for the pion energy reconstruction. The intrinsic performances of the calorimeter are studied: resolution, linearity, effect of dead material, tails in the energy distribution. The effect of electronic noise, cell energy cuts and restricted cone size are investigated.

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M. Bosman, Y. Kulchitsky, M. Nessi. 2000-02-14. Charged Pion Energy Reconstruction in the ATLAS Barrel Calorimeter. https://arxiv.org/abs/hep-ex/0002033

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