LEPTON ENERGY SPECTRA IN e+e - ANNIHILATION AND OTHER PROCESSES

Abstract An analysis is presented of the single inclusive leptonspectra expected from the decay of charmed hadrons or heavier particles with new flavors produced in e + e − annihilation. Extremely soft spectra are found, in contrast to the heavy leptonsignal. Good detection efficiency at low momentum will therefore continue to be important in future experiments. A range of plausible inclusive D mesonspectra abstracted from a partonfragmentation picture is employed. The model is applicable to other processes.