Measurement of the e/pi ratio difference between short (250 ns) and long (2.2 (mu)s) integration times with the D0 uranium-liquid argon central calorimeter

摘要

The difference of the ratios of the high energy electron and pion responses(e/pi) in the D0 Uranium-liquid Argon central calorimeter is measured using the D0 calorimeter trigger readout (short integration time: 250 ns) and precision readout (long integration time: 2.2 (mu)s). This measurement found a 5% difference in the e/pi ratio between short and long integration times, with estimated uncertainty of 2.3%.