STUDY OF JET RECONSTRUCTION ALGORITHMS FOR DEEP-INELASTIC EVENTS AT HERA

Three commonly used jet algorithms and two new ones have been studied with respect to their performance in the new experimental situation of deep-inelastic scattering at the HERA electron-proton collider. Their ability to reconstruct properties of the underlying parton level subp rocesses was investigated. This relates to first order QCD matrix elem ents and higher order parton emissions as described by parton showers. A new method was devised to determine suitable values for the resolut ion parameters of the algorithms and assess their reconstruction quali ty. The Jade algorithm, which is frequently used in e+ e--annihilation , is found to perform less well compared to other algorithms.