CDF AND D0 TOP QUARK CROSS SECTION MEASUREMENTS

摘要

Preliminary results of tt cross section measurements and single top exclusion limits of the Tevatron experiments CDF and D0 are presented. The different measurements are based on a dataset between 140 and 200 pb~(-1) corresponding to a data taking period from spring 2002 to September 2003. The tt cross section measurements are consistent with each other and the Standard Model prediction. Data and Monte-Carlo prediction are in good agreement in the search for single top quark. Its observation is anticipated with roughly 2 fb~(-1) integrated luminosity.