The CDF II project at Fermilab

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The Collider Detector at Fermilab (CDF) experiment is studying the world's highest energy proton-antiproton collisions.  The CDF collaboration consists of scientists from eleven different countries, including a group of over 20 Canadian particle physicists affiliated with the Institute of Particle Physics (IPP).  The IPP group joined CDF in 1991 for the Run I data taking period.  One of the highlights of Run I, which by all measures was a great success, was the discovery of the top quark.  The IPP group is now participating in the Tevatron Run II programme. For Run II, the CDF detector and the Tevatron collider underwent major upgrades and we anticipate a factor of 50-100 increase in the statistics of specific final states by 2009. The Tevatron and the CDF detector are performing very well with data taking efficencies near 90% and peak luminosities in excess of 1.7E32/cm^2/s.  This has allowed us to collect over 1/fb of data and an anticipated doubling of the current dataset between now and the end of next year.  The fully realized physics programme of Run II requires the analysis of inverse femtobarns of collision data.  This integrated luminosity will allow us, for example, to search for new particles and forces, to measure the top quark mass, the W boson mass, and key parameters of the observed matter-antimatter asymmetry of the universe, all with unprecedented precision. This proposal requests funding for the next three years in order for the IPP group to capitalise on NSERC's significant investment in the CDF II experiment and its physics. This will allow our graduate students, research associates, and faculty to continue their service contributions to CDF and to complete their ongoing physics analyses at a time when the most exciting physics in the history of the Tevatron programme will be analysed.