Dual-Readout Calorimetry with Lead Tungstate Crystals
N. Akchurin, et al
TL;DR
This paper demonstrates a dual-readout calorimetry technique using lead tungstate crystals and a DREAM calorimeter to improve hadronic energy resolution by analyzing scintillation and Cherenkov light contributions event-by-event.
Contribution
It introduces a novel combined calorimeter setup that separates scintillation and Cherenkov signals to enhance measurement precision.
Findings
Improved hadronic calorimeter performance through dual-readout analysis.
Detailed signal analysis enables fluctuation reduction.
Successful beam test results at 50 GeV.
Abstract
Results are presented of beam tests in which a small electromagnetic calorimeter consisting of lead tungstate crystals was exposed to 50 GeV electrons and pions. This calorimeter was backed up by the DREAM Dual-Readout calorimeter, which measures the scintillation and \v{C}erenkov light produced in the shower development, using two different media. The signals from the crystal calorimeter were analyzed in great detail in an attempt to determine the contributions from these two types of light to the signals, event by event. This information makes it possible to eliminate the dominating source of fluctuations and thus achieve an important improvement in hadronic calorimeter performance.
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