The CDF II extremely Fast Tracker upgrade

I. Fedorko*, A. Abulencia, D. Errede, H. Gerberich, T. Junk, M. Kasten, S. Levine, R. Mokos, K. Pitts, E. Rogers, G. Veramendi, P. Azzurri, S. Donati, A. Staveris-Polykalas, E. Cochran, J. Efron, J. Gartner, R. Hughes, M. Johnson, B. KilminsterK. Lannon, J. McKim, D. Olivito, B. Parks, J. Slaunwhite, B. Winer, J. Dittmann, S. Hewamanage, N. Krumnack, J. S. Wilson, R. Erbacher, R. Forrest, A. Ivanov, A. Soha, G. Flanagan, T. Jones, S. Holm, R. Klein, E. E. Schmidt, L. Scott, T. Shaw, P. J. Wilson

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The CDF II extremely Fast Tracker (XFT) is the trigger processor which reconstructs charged particle tracks in the transverse plane of the central tracking chamber. The XFT tracks are also extrapolated to the electromagnetic calorimeter and muon chambers to generate trigger electron and muon candidates. The XFT is crucial for the entire CDF II physics program: it detects high pT leptons from W/Z and heavy flavor decays and, in conjunction with the Level 2 processors, it identifies secondary vertices from beauty decays. The XFT has thus been crucial for the recent measurement of the Bs0 oscilation and Σb discovery. The increase of the Tevatron instantaneous luminosity demanded an upgrade of the system to cope with the higher occupancy of the chamber. In the upgraded XFT, three dimensional tracking reduces the level of fake tracks and measures the longitudinal track parameters, which strongly reinforce the trigger selections. This allows to mantain the trigger perfectly efficient at the record luminosities 2-3.10 32 cm-2 s-1 and to mantain intact the CDF II high luminosity physics program, which includes the Higgs search. The architecture, the used technology, the performance and the impact of the upgraded XFT on the entire CDF II trigger strategy are reviewed.

    Original languageEnglish (US)
    Title of host publicationAstroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 10th Conference
    PublisherWorld Scientific Publishing Co. Pte Ltd
    Pages951-955
    Number of pages5
    ISBN (Print)9812819088, 9789812819086
    DOIs
    StatePublished - 2008
    EventInternational Conference on Advanced Technology and Particle Physics, ICATPP 2007 - Como, Italy
    Duration: Oct 8 2007Oct 12 2007

    Publication series

    NameAstroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 10th Conference

    Other

    OtherInternational Conference on Advanced Technology and Particle Physics, ICATPP 2007
    CountryItaly
    CityComo
    Period10/8/0710/12/07

    Keywords

    • CDF
    • Trigger
    • XFT

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Nuclear and High Energy Physics

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