Dual-Readout Calorimetry with Lead Tungstate Crystals
Abstract
Description
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 Čerenkov 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.
Preprint submitted to Nucl. Instrum. Meth. on July 23, 2007
Preprint submitted to Nucl. Instrum. Meth. on July 23, 2007