1998/11/22 by Richard Partridge, Partridge, Richard
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/9811035
Plenary talk given at the XXIX International Conference on High Energy Physics, Vancouver, Canada. 19 pages, 35 figures
arxiv created 1998/11/22 · openalex publication_date 1998/11/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper summarizes a variety of recent results on heavy quark production and decay. Considerable progress has been made by CDF and D0 in measuring top quark production and decay properties. The top quark mass been measured with an uncertainty that is less than 3%, a relative precision that is better than has been achieved for other quarks. Measurements of the top production and decay properties are consistent with the Standard Model predictions, but are generally limited in precision by the small number of top quark events in the present data samples. ALEPH and CLEO have measured the branching ratio for the flavor changing neutral current decay b->s gamma and find good agreement with the Standard Model. Measurements of b-quark production cross sections in ppbar collisions by CDF and D0 and in ep collisions by H1 continue to show discrepancies between theory and experiment. CDF and DELPHI have measured the b-quark fragmentation fractions with better accuracy than previous measurements. Finally, measurements of charmonium production by D0, E771, and L3 are consistent with predictions of the color octet model.