Measurements of Higher Order Effects in QCD from the Tevatron Collider

Abstract

Quantum Chromodynamics has been studied extensively at Fermilab's Tevatron collider. Between 1992 and 1996 the DØand CDF experiments, each accumulated approximately $100{\mathrm{pb}}^{-1}$ of proton-antiproton collisions at a center-of-mass energy $\sqrt{s}=1800\mathrm{GeV}$ and $\sim 0.5{\mathrm{pb}}^{-1}$ at $\sqrt{s}=630\mathrm{GeV}$. In this paper, we present selected recent measurements of higher order effects in QCD: multiple jet production and subjet and charged particle multiplicities in quark and gluon jets.

Comments: 4 pages, 3 figures in epsi file, talk given at XXXI International Symposium on Multiparticle Dynamics, Sept 1-7, 2001, Datong China. URL http://ismd31.ccnu.edu.cn/