2012/07/31 by CALICE Collaboration, C. Adloff, J.J. Blaising +202 · 58 citations
Physics and Astronomy · #Calorimeter (particle physics) #Computer science #Detector #Energy (signal processing) #Event (particle physics) #Hadron #Large Hadron Collider #Nuclear physics #Optics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Radiation Detection and Scintillator Technologies #Resolution (logic) #Scintillator #Substructure #hep-ex #physics.ins-det
paper · pdf · doi:10.1088/1748-0221/7/09/p09017
published in Journal of Instrumentation 7(09), P09017 (Institute of Physics) · 26 pages, 14 figures
arxiv created 2012/09/27 · openalex publication_date 2012/09/27 · arxiv updated 2012/09/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The energy resolution of a highly granular 1 m 3 analogue scintillator-steel hadronic calorimeter is studied using charged pions with energies from 10 GeV to 80 GeV at the CERN SPS. The energy resolution for single hadrons is determined to be approximately 58%/√ E /GeV. This resolution is improved to approximately 45%/√ E /GeV with software compensation techniques. These techniques take advantage of the event-by-event information about the substructure of hadronic showers which is provided by the imaging capabilities of the calorimeter. The energy reconstruction is improved either with corrections based on the local energy density or by applying a single correction factor to the event energy sum derived from a global measure of the shower energy density. The application of the compensation algorithms to geant4 simulations yield resolution improvements comparable to those observed for real data.