Inclusive electron production from heavy quarks with the Tasso lead-liquid argon calorimeters in e+e- annihilation at PETRA

The production of electrons from the decay of bottom and charm hadrons has been studied in e+e- annihilation at 34.6 GeV center of mass energy using lead-liquid argon calorimeters. It is observed that the b quark fragmentation function is peaked at large values of the scaling variable z with = 0.84/sub -0.10 - 0.11//sup +0.15 + 0.15/. For c quarks = 0.57/sub -0.09 - 0.06//sup +0.10 + 0.05/ is observed. A forward-backward charge asymmetry of A = -0.25 +/- 0.22 was measured in b production. As the calorimeters and the methods of pattern recognition are well suited to π0 identification, the inclusive π0 cross section has also been measured