E/pi and pi(sup 0)/pi ratios measured, and monochromatic gamma and pi(sup 0) beams explored in the D0 test calorimeter.

摘要

The e/(pi) response ratio of the DO end calorimeter has been measured by comparing data from 10 to 150 GeV/c electron and pion beams. The ''intrinsic'' e/(pi) of the fine-hadronic module has also been studied with the pions alone, by selecting (pi)(sup 0)-like showers contained within individual layers of the calorimeter. The measurements are compared to GEANT Monte Carlo simulations. A technique to generate monochromatic test beams of photons and neutral pions was successfully investigated. Preliminary results from central calorimeter modules exposed to these beams are discussed, and are compared to calculated expectations.