The CDF-II Online Silicon Vertex Tracker

A. Bardi , A. Belloni , R. Carosi , A. Cerri , G. Chlachidze , M. Dell'Orso , S. Donati , S. Galeotti

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P. Giannetti V. Glagolev E. Meschi F. Morsani D. Passuello G. Punzi L. Ristori A. Semenov F. Spinella A. Barchiesi M. Rescigno S. Sarkar L. Zanello M. Bari S. Belforte A.M. Zanetti I. Fiori B. Ashmanskas M. Baumgart J. Berryhill M. Bogdan R. Culbertson H. Frisch T. Nakaya H. Sanders M. Shochet U. Yang Y. Liu L. Moneta T. Speer X. Wu

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classification ✦ hep-ph

keywords cdf-iionlinesiliconvertexphysicstrackeraccuracyallows

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The Online Silicon Vertex Tracker is the new CDF-II level 2 trigger processor designed to reconstruct 2-D tracks within the Silicon Vertex Detector with high speed and accuracy. By performing a precise measurement of impact parameters the SVT allows tagging online B events which typically show displaced secondary vertices. Physics simulations show that this will greatly enhance the CDF-II B-physics capability. The SVT has been fully assembled and operational since the beginning of Tevatron RunII in April 2001. In this paper we briefly review the SVT design and physics motivation and then describe its performance during the early phase (April-October 2001) of run II.

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The CDF-II Online Silicon Vertex Tracker

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