ABSTRACT
ICALEPCS 2001

Abstracts



THBT003 (Talk)

Presenter: Simone Donati (INFN - Pisa)
email: simone.donati@pi.infn.it
Review Status: Proceedings Ready - 03/26/02
FullText: pdf
Eprint: hep-ph/0112141

The CDF-II Online Silicon Vertex Tracker

A. Bardi, A. Belloni, R. Carosi, A. Cerri, G. Chlachidze, M. Dell'Orso, S. Donati, S. Galeotti, P. Giannetti, V. Glagolev, E. Meschi, F. Morsani, D. Passuello, G. Punzi, L. Ristori, A. Semenov, F. Spinella (INFN, Pisa), A. Barchiesi, M. Rescigno, S. Sarkar, L. Zanello (INFN,Roma), M. Bari, S. Belforte, A.M. Zanetti (INFN,Trieste), I. Fiori (INFN,Padova), B. Ashmanskas, M. Baumgart, J. Berryhill, M. Bogdan, R. Culbertson, H. Frisch, T. Nakaya, H. Sanders, M. Shochet, U.Yang (Fermi), Y. Liu, L. Moneta, T. Speer, X.Wu (University of Geneve)

The CDF Online Silicon Vertex Tracker is the new trigger processor dedicated to the reconstruction of charged particle trajectories at the Level 2 of the CDF trigger. The SVT has a maximum event rate of 100 KHz and a latency time of 10 microseconds. Its core is organised as 12 identical systems (slices) running in parallel almost independently. Each SVT slice links the digitized pulse heights found within one SVXII wedge to the tracks reconstructed in the corresponding 30 degree angular region of the Central Outer Tracker (COT) by the Level 1 Fast Track finder (XFT). The main functional blocks of each Silicon Vertex Tracker slice are the Hit Finders, which perform silicon clustering, the Associative Memory system, which identify raw track candidates by comparing the list of hits to a set of predetermined patterns, the Hit Buffer and the Track Fitter, which perform full resolution fit of track candidates found by the Associative Memory. The SVT is now fully installed and ready for the Tevatron run II data taking. We review the architecture and the performance achieved by the system in run II.
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ICALEPCS 2001

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