Top Quark Production Cross Section at the Tevatron
  An overview of the preliminary results of the top quark pair production cross section measurements at a center-of-mass energy of 1.96 TeV carried out by the CDF and D0 collaborations is presented. The data samples used for the analyses are collected in the current Tevatron run and correspond to an integrated luminosity from 360 pb-1 up to 760 pb-1. 
E. Shabalina (for the CDF Collaboration, D0 Collaboration)