1. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 1 96 wire planes –(8 superlayers) –50% are 3 o stereo –Uniform drift (0.88 cm cell) –30,240 sense wires Sense wires Potential wires Cathode CDF Central Outer Tracker

2. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 2 Field Sheet

3. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 3 Installation

4. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 4 COT Readout and Trigger

5. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 5 Expected Tracker Performance 3D tracking with high efficiency & purity Good momentum resolution with the COT Impact parameter resolution  d (r  ) ~ 6  20/p T [  m]  d (rz) ~ 45 [  m] Efficient B tagging ~60 % efficiency in top ?

6. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 6 Oct 30  Nov 1: 36x36 store 34 hrs @ 4 x 10 **29 cm-2 s-1 –Establish operating points COT : different settings for discriminator thresholds & dE/dx width CLC : different settings for gas pressure, etc. –Establish triggers Level-1 : muon stub triggers, Min Bias & muon stub triggers, XFT Level-2 : running Level-2 processors, but not rejecting events, yet. Level-3 : testing filter modules, but not rejecting events, yet. –Online/DAQ system, online calibration & database, monitoring all work –Wrote > 5 million min-bias events with COT, silicon, Calor, Muons, etc –48 runs, 42 operator stop vs crash, wrote@160 Hz, tests@240Hz Nov 2  Nov 3: 36x36 store 18 hrs @ 2 x 10 **29 cm-2 s-1 Nov 4  Nov 6: 36x36 store 35 hrs @ 3 x 10 **29 cm-2 s-1 ~Every Hardware and Software system was exercised ! Commissioning Run

7. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 7 First Collisions

8. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 8 Initial Performance Beam axis view COT track Residuals*  = 242  m Stereo works YZ view *No alignment corrections, crude t 0 ’s and drift time to distance relationships, and no B-field corrections. We expect to reach or exceed our goal of 180  m resolution.

9. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 9 36x36 store Nov. 3  : K o,  reconstruction –Oppositely charged track pairs with large impact parameter and small z separation.

10. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 10 EXtremely Fast Tracker (XFT)  P T /P T **2  /  **2  = 1.8%  = 9mr Matching CMU Muon Stub Event triggered on XFT- muon match 2.3 Gev XFT track XFT Goals: Pt resolution < 2% : see  = 1.8%  resolution < 8 mrad: see  = 9 mrad Will do better !

11. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 11 COT/XFT reconstruction

12. The CDF Upgrade - Incandela -CERN - January 26, 2001 slide 12 Beam offset offline d0  COT center line is off vertically by ~6 mm w.r.t. beamline  XFT puts in beamline offset (roughly)