We discuss three recent tests of QCD at D0: (a) measurements of the rates and momentum transfers in 'rapidity gap' events for both di-jet and W events; (b) measurement of the intercept of the 'BFKL ...
Measurements of the subjet structure of quark and gluon jets in hadronic Z decays are presented. The analysis is based on one million hadronic events recorded by the Aleph detector. Roughly symmetric ...