Status of CDF Run II upgrade

For the past several years, the CDF collaboration has been upgrading its detector to accommodate the higher luminosity and beam energy expected during Run II (2001–2006) at the Tevatron pp̄ collider. Accelerator improvements include increasing the instantaneous luminosity by an order of magnitude with respect to Run I to 2×1032 cm−2 s−1 and increasing the center of mass energy from 1.8 to 2.0 TeV. The detector upgrades include replacing the entire tracking volume, extending the muon coverage, adding a time-of-flight system, and improving the selection capabilities of the trigger. The partially instrumented detector underwent a commissioning run during September/October 2000 in preparation for starting data taking in Spring 2001 with the full detector. Now that Run II has been extended through 2006, we expect to collect an integrated luminosity of 2 fb−1 during the first two years of running and up to a total of 15 fb−1 by the end of Run II.