Hadron Energy Resolution of the CALICE AHCAL and Software Compensation Approaches

Details Hadron Energy Resolution of the CALICE AHCAL and Software Compensation Approaches Hadron Energy Resolution of the CALICE AHCAL and Software Compensation Approaches

2012-02-28

arxiv.org/abs/1202.6184v1

Physics

Instrumentation and Detectors

7 pages, 4 figures, Proceedings of LCWS11 (style LCWS11.cls)

Scientific paper

The hadron energy resolution of a highly granular CALICE analogue scintillator-steel hadronic calorimeter was studied using pion test beam data. The stochastic term contribution to the energy resolution was estimated to be 58%/sqrt(E/GeV). To improve an energy resolution, local and global software compensation techniques were developed which exploit an unprecedented granularity of the calorimeter and are based on event-by-event analysis of the energy density spectra. The application of either local or global software compensation technique results in reducing of stochastic term contribution down to 45%/sqrt(E/GeV). The achieved improvement of single particle energy resolution for pions is about 20% in the energy range from 10 to 80 GeV.

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