A Measurement of the $e/\pi$ Ratio Difference between Short (250-$\mu$s) and Long (2.2 microseconds) Integration Times with the D0 Uranium Liquid Argon Central Calorimeters

Abstract

The difference of the ratios of the high energy electron and pion responses ($e/\pi$) in the DO Uranium-liquid Argon central calorimeter is measured using the DO calorimeter trigger readout (shon 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%.