1. Scientific Highlights : CDF Experiment 1.Introduction 2.CDF Run-II detector 3.Phyiscs highlights B Physics, Top, Higgs, … to be continued by Rob October 20, 2010 US-Japan 30 th Anniversary Symposium Kona, Hawaii Fumihiko Ukegawa

2. CDF: Collider Detector at Fermilab Fermilab Tevatron : Proton-antiproton collider Highest energy accelerator / collider, at √s = 1.96 TeV, till 2009 Run-II experiment in progress since 2001 It is certainly an “on-going” experiment, but … CDF

3. Rich history of collaborative work A lot of physics output, even for highlights Impossible to cover them all in two 7-minute talks More appropriate persons to speak than myself (I am just a “young fella” in CDF) If I would qualify for it, it is because I started out in CDF as a grad student … And I am still on CDF –I thought it would be the only experiment I work on It has been going on for three decades ! Back to the present …

4. Peak luminosity 2×10 32 2010/10/1 Record peak lum : 4.02×10 32 cm -2 s -1 (April 16, 2010) Antiproton accumulation rates Record : 28.6×10 10 / hour Weekly : 73.1 pb -1 (Apr 13 – 20, 2009) Monthly : 273 pb -1 (March 2010) Annual : 2.5 fb -1 (US FY2010) Integrated luminosity Run-II total ~ 9.5 fb -1 Tevatron performance 2010/10/1 Total ~ 9.5 fb -1 2001/4/1 4×10 32

5. Run-II CDF Detector From inside out (Blue: new in Run-II experiment) Tracking system Silicon detectors : vertex Main drift chamber COT : p TOF counter : K/  sep. Solenoid ： 1.5 Tesla EM calorimeters Plug cal, Central pre-shower Hadron calorimeters Plug cal Muon chambers Forward muon system Excellent tracking (large solenoid) Cal with projective tower geometry Good lepton ID capabilities

6. Plug EM Calorimeter Scintillating tiles + WLS fiber + PMT Fast response, good energy resolution + uniformity, small dead space KEK, Tsukuba, Waseda Scintillator + fiber, PMT by Kuraray, Hamamatsu

7. SVX II 5 layers Radii from 2.5 cm to 11 cm Double-sided, 90 o and 1.2 o stereo Intermediate silicon layers (ISL) 3 more layers at R = 20 - 29 cm Construction similar to SVX II Precision tracking to higher eta CDF-II silicon detectors Layer 00 At radius ~1.6 cm, on beam pipe Minimize multiple scattering Single-sided Collision point Precision tracking and vertexing : crucial for top and B physics

8. ISL Tsukuba, Osaka City ~50% of sensors by Hamamatsu SVX II Hiroshima, Okayama Layer 1, 2, 4 sensors by Hamamatsu

9. Layer 00 Installation

10. The CDF Detector Running smoothly and efficiently

11. CDF Physics Many important results in: Electroweak physics Top Quark physics B physics QCD Higgs searches New particles / phenomena > 250 journal publications with Run-II data, More to come. 22 PhD’s from Japanese institutions (Run II)

12. CDF B physics No explicit mention of B physics in the design report (1981) CDF turned out to be quite suited for B physics Solenoid + tracking, calorimeters, lepton ID 1.Run 0 (1988 – 89) Demonstration that CDF can detect B decays Single electrons, di-muons 2.Run I (1992 – 96) Silicon vertex detector installed Significant measurements ( lifetimes, B d oscillations, B c discovery …) 3.Run II (2001 - ) Enhanced capability with silicon trigger (SVT) B s oscillations, CP violation, rare decays … Blue: significant Japanese physicist contributions

13. Fourier analysis

14. Summer 2005Fall 2006 Impact on the CKM unitarity triangle CKM theory tested/confirmed with precision  Nobel prize 2008 Now looking for possible inconsistencies due to new physics

15. Looking for new CP phase beyond CKM Signal ～ 6500 5.2 fb -1 SM More data will surely help

16. Forbidden at tree level in SM Can proceed in higher order Belle result on asymmetry hint of new physics ? Sensitive to new physics

17. F/B asymmetryPolarization  mass dist. Want more data here, too

18. Conclusions Excellent original detector design philosophy Large solenoid + precision tracking, Segmented tower cals, Lepton ID Went through continuous upgrades Enhanced physics capabilities Accelerator performance has excelled too 23 events  30 nb -1  4.5 pb -1  110 pb -1  > 10 fb -1 1985 1987 1988-89 1992-96 2001 - EWK, QCD, Top, Exotics, Higgs, and B physics Looking forward to the 4 th decade !

19. Backup slides

20. Run-II Silicon Vertex Trigger : SVT Use silicon information at the 2nd level of trigger Calculate the impact parameters of tracks on-line, with a resolution of ~50  m Enables us to collect B deacys to hadronic final states, such as

21. TOF counter

22. Central Preshower Counter (CPR2) Scintillating tiles with WLS fiber readout Hamamatsu H8711 16-pixel multi-Anode PMT