Speaker
Summary
In 2004 the ATLAS collaboration carried out a beam test
in which a full slice of the ATLAS barrel detector was exposed to beams
of electrons and pions in the energy range from 1 to 350 GeV.
The calorimeter was composed of a liquid argon lead calorimeter
in the electromagnetic part and a scientillator tile calorimeter
in the hadronic part. One of the main purposes of this combined test-beam
is to test the hadronic calibration strategy based on Monte Carlo simulation to
correctly measure the energy of pions.
The strategy to extract the corrections for dead material losses, for the
non-compensating nature of the ATLAS calorimeter and for leakage effects
is discussed and assessed using test-beam data. The default ATLAS strategy,
based on a weighting technique of calorimeter cells, is presented and
compared to a novel technique exploiting correlations among calorimeter
layers.
