Teaching:

• University of Chicago
  • Spring 2003: Particle Physics
  • Fall 2003: Atomic and Molecular Lab.
  
  
• University of California, Berkeley:
  • 2001-2002: 226, 290E (Fall), 7B (Spring)
  • 1999-2000: 8B (Spring)
  • 1998-1999: 129A & 290E (Fall), 129B (Spring)
  • 1997-1998: 8B (Fall), 8A (Spring)
  • 1996-1997: 290E (Fall), 8A (Spring)

U of Chicago Graduate Physics 335

• Academic year 2003-2004
  • Level-2 Trigger Upgrade and CLIST board testing
  • Wojciech Fedorko's Report
  
  
• Academic year 2004-2005
  • Silicon Vertex Trigger Upgrade
    • Triggers at CDF: The trigger system is crucial to the success of a hadron collider experiment such as CDF. Fermilab's Tevatron accelerator produces about 10 million proton-antiproton collisions per second. Of those, a maximum of ~100 can be stored for later analysis. It is the job of the trigger to select the most interesting 0.001% of events in real time.
      
      
    • Silicon Vertex Trigger (SVT): The Tevatron Collider produces more B mesons per year than the B factories. In Run IIa (2001-2005), the novel Silicon Vertex Trigger (SVT) was first used to gather fully hadronic decays of charm and bottom mesons at hadron colliders. The SVT relies only on their small but measurable lifetime. It determines the impact parameter of each charged-particle track relative to the beam line with a resolution of 30 microns, thus providing a secondary-vertex trigger. This novel trigger allows CDF to gather samples of particle decays never before available in p - anti-p collisions. The hardware was designed and built largely by Pisa and U. Chicago, and also Geneva, Rome, and Trieste. The SVT system is working spectacularly well. The recent results on the hadronic decays, including the observation of B --> two hadrons at the Tevatron, would not be possible without the SVT. Much of the B-physics program, in fact, rests on the SVT. The first paper to come out of CDF from Run II was, in fact, based on a short SVT run in which a large sample of D decays was accumulated (the primary author of this paper is Ivan Furic, my postdoc).
      
      The SVT is also important for
      • Top-quark mass measurement (energy calibration of b quarks from top quark decays is studied by measuring the Z mass using Z --> two b quarks)
      • standard-model Higgs Searches (Higgs mainly decays into a pair of b quarks if M(Higgs) < ~135 GeV)
      • physics beyond the standard model (e.g. SUSY Higgs, h, A, H, searches using 4 b quark mode)
      The SVT triggers Z --> bb, ZH --> two neutrinos + bb, A/h/H(SUSY Higgs) bb --> bbbb events.
      
      
    • Upgrade of Silicon Vertex Trigger: In RunIIb (2005-2009), the increased beam luminosity requires an upgrade of the trigger hardware to maintain performance efficiently. We plan to complete the design of the system by this Winter and to complete the construction by Spring 2005. U. Chicago and Pisa are the primary institutions for this project. Students will participate in designing and building/testing electronics boards for the upgraded SVT, as well as analyzing data gathered with the current and upgraded SVT.

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