User:Andrea easterday

The CELLO Experiment operated from 1980 to 1986 at the PETRA electron-positron collider at the Deutsches Elektronen-Synchrotron in Hamburg, Germany. The most significant experimental results include discovery of the gluon and the precise measurement of the angular asymmetry of quark and lepton pair production, as predicted by the Standard Model. A large liquid argon calorimeter with high spatial resolution was used for the first time by the CELLO Experiment for the detection of photons. The liquid argon technology was largely developed at the Max Planck Institute for Physics in Munich, and was later effectively applied at the H1 Experiment at HERA and at the ATLAS Experiment at the LHC in Geneva, Switzerland.