Results from a new combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter

A new combined test of an electromagnetic liquid argon accordion calorimeterand a hadronic scintillating-tile calorimeterwas carried out at the CERN SPS. These devices are prototypes of the barrel calorimeterof the future ATLAS experimentat the LHC. The energy resolution of pions in the energy range from 10 to 300 GeV at an incident angle a of about 12 degrees is well described by the expression sigma/E = ((41.9 +/- 1.6)%/root E + (1.8 +/- 0.1)%)circle plus(1.8 +/- 0.1)/E, where E is in GeV. The response to electrons and muons was evaluated. Showerprofiles, showerleakage and the angular resolutionof hadronic showerswere also studied. Results are compared with those from the previous beam test.