Non-Compensation of the ATLAS Barrel Tile Hadron Module-0 Calorimeter

The detailed experimental information about the electron and pion responses, the electron energy resolution and the e=h ratio as a function of incident energy E, impact point Z and incidence angle of the Module-0 of the ATLAS iron-scintillator barrel hadron calorimeter with the longitudinal tile conguration is presented. The results are based on the electron and pion beams data for E = 10, 20, 60, 80, 100 and 180 GeV at = 0:25 and 0:55, which have been obtained during the test beam period in 1996. The results are compared with the existing experimental data of TILECAL 1m prototype modules, various iron-scintillator calorimeters and with some Monte Carlo calculations.