Charm and Beauty Production at Cdf
نویسندگان
چکیده
The Tevatron at Fermilab is at present the world’s highest energy particle accelerator. After extensive refurbishments, data taking for Run II started in 2001, and by the end of 2003 over 200 pb of usable integrated luminosity had been accumulated by each Collider experiment, double the total for Run I. In preparation for Run II, the CDF detector also underwent an extensive upgrade. Of special importance for the results presented here are the new Silicon Vertex Tracker, and a number of significant improvements to the trigger system. The Extremely Fast Tracker allows tracks in the central tracking system to be identified in the first-level trigger. In the second-level trigger, these tracks can be matched with tracking information from the SVT so as to identify events containing a displaced secondary vertex, by identifying tracks with a finite impact parameter relative to the beam line. The events are finally recorded after verification by the third-level trigger. In this talk, recent measurements and analyses of charm and beauty states using the CDF detector are presented. The emphasis here is on production mechanisms; studies of the decay and lifetime properties of such particles are given in other contributions to these Proceedings.
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