1. CDF Introduction Joseph Kroll – Penn DOE Site Visit – 10 August 2006

2. Context of these presentations Past year CDF has focused on analyzing 1 fb -1 of data Penn group has focused on data analysis as well Penn CDF Group has made major contributions to CDF II & made a major investment in Run II The Tevatron back in operation after 14 week shutdown: > 1.7 fb -1 delivered to both CDF & DØ pbar stacking almost back to pre-shutdown perform. back up to peak luminosity performance > 4 fb -1 is feasible Penn committed to capitalizing on our investment in Run II Focus on flagship physics (m t,  m s ) and discovery Continuing contributions to operations

3. Hardware –Run IIa: COT, TOF, Calorimeter calibration electronics –Run IIb: Level 2 trigger upgrade –personnel devoted to proposing, designing, constructing, installing, commissioning above hardware Operations –maintaining above hardware –continued leadership roles and assume new leadership roles –more responsibilities: trigger, COT tracking, Si alignment, calibrations Data analysis & Physics –Primary contributions to flagship analyses unique to Run II –top physics, B s mixing, SUSY & Higgs searches –Primary authors of 1 st PRL (D cross-section) and 1 st high p T PRL (top cross-section from dileptons) Our Investment in Run II

4. Current Personnel Faculty: J. Kroll, N. Lockyer, E. Thomson, H. H. Williams Post-docs: A. Canepa (9/06), A. Heijboer, C. Neu, D. Whiteson Graduate Students: J. Keung (Sum. 07), E. Pianori (Spr. 07), T. Rodriguez, Y. Tu Staff: J. Heinrich, P. Keener, W. Kononenko, G. Mayers, M. N. Newcomer, R. Van Berg

5. Past Personnel Contributing to Progress Report Post-docs: A. Kraan – now a EU Marie Curie Fellow P. Wittich – now an assistant professor at Cornell Students: K. Hahn (now post-doc at MIT on CMS) A. Kovalev (investment company) D. Usynin (investment company) 3 dissertations completed this past year

6. Contributions to Run IIb Trigger Level 2 decision crate upgrade –responsible for back-end of system including trigger decision –initial leadership from Peter Wittich –Daniel Whiteson (PD) & Kristian Hahn (GS) drove back-end effort help from Paul Keener (staff) here –Chris Neu (PD) shared responsibility for reCES part of system required splitting optical signals using active splitters –Replaced alpha based Run IIa system in April 2005 –Duplicate system runs parasitically  allows real time development without using beam time –participating in routine operation (pager responsibilities) –D. Whiteson: Level 2 Software Coordinator 20K contributed from UPenn

7. Contributions to Operations (continued) On-line beam profile monitoring with SVT –Chris Neu working with Luciano Ristori (then CDF co-spokesperson) Silicon alignment –Aart Heijboer took over from Ray Culbertson (FNAL) in Fall 2004 Calibration coordination –Aafke Kraan: Mar. 2005 to Mar. 2006 –Daniel Whiteson: Apr. 2006 to present TOF pager duties Data taking shifts (Aces, Scico’s)

8. Leadership in Physics N. Lockyer: co-spokesperson – 2002 to 2004 J. Kroll: co-leader B s mixing effort – 2004 to present E. Thomson: co-leader top group – Apr. 2004 to Apr. 2006 Aart Heijboer: co-leader BPAK subgroup Chris Neu: co-leader b-tag subgroup – Nov. 2005 to present Daniel Whiteson: –top MC coordinator – Aug. 2004 to Mar. 2006 –co-leader top mass subgroup – began Aug. 2006 Joel Heinrich: member CDF statistics committee

9. Physics Highlights top –major leadership role –cross section measurements –mass using matrix el. method –W Helicity SUSY –dilepton searches (e  ) –adding  leptons Higgs search –Wbb, Z ! bb, WZ b-tagging for top and Higgs B s flavor oscillations –major leadership role –leading role in analysis of significance, combining channels, measuring  m s –used analytic methods to speed up fit by orders of magnitude B fragmentation studies –crucial for flavor tagging too More details in presentations that follow B PhysicsHigh p T physics Focus on flagship measurements Continue search for new physics

10. Publications Primary authors or major contributors to nine publications: First PRL from Run II First high p T PRL PhD: C. Chen

11. Publications From Progress Report 1 st precise measurement of  m s PhD: K. Hahn PhD: A. Kovalev

12. Major role – both in leadership and analysis Run I –1 st fully reconstructed B meson at hadron collider –1 st measurement of B s lifetime in J/   final state –Development of b flavor identification techniques for  m d & sin2  Run II –TOF –charm cross section –established method for developing opposite-side b flavor tags –contributions to trigger strategy and trigger improvements –fragmentation studies for same-side flavor tags –central role in analysis, primary authors of publication Penn’s Role in B s Oscillations Hughes Azfar Long, Gao Chen Usynin PhD Students

13. Plans for Upcoming Year Physics –top (Neu, Thomson, Williams, Whiteson) cross-section mass Wbb –B s mixing (Heijboer, Kroll) –SUSY searches & EW (Canepa, Keung, Lockyer, Pianori, Rodriguez, Tu) –Higgs (Neu) Operations –TOF (Heijboer) –L2 (Neu, Whiteson) –Calibrations (Whiteson) –Si alignment (Heijboer) Committed to getting lots of physics out of Run II data