QCD STUDIES IN E(+)E(-) INTERACTIONS AT CLEO

摘要

We use the CLEO detector at the Cornell e(+)e(-) storage ring, CESR, to study QCD from a wide variety of perspectives. From a study of jet production rates, we compute alpha(s) in the four flavour continuum in agreement with five flavour results from LEP experiments. By comparing the decay rate of Upsilon --> gamma gg and Upsilon --> ggg we explore parton shower distributions and measure alpha(s) in the Upsilon energy range. Two-photon interactions probe QCD at lower energy scales. The measurement of the two-photon width of the chi(c2) adds to our understanding of non-perturbative effects in charmonium systems. [References: 10]