A. Clark 1 CDF - highlights and perspectives Operating well: - rich physics program with ongoing results at highest operating collision energies (√s=1.96 GeV) - silicon cooling problems being addressed (9-week shutdown from August 6th. - data taking foreseen until fb -1 expected DPNC Cartigny

A. Clark 2 CDF Institutions 62 institutions 14 countries University of Geneva Allan Clark Till Hoffmann (MSc) Anna Sfyrla (thesis) Sofia Vallecorsa (thesis) Xin Wu Until recently: Mario Campanelli Régis Lefevre Shulamit Moed (thesis)

A. Clark 3 CDF Run II Publications YearPublications * Total140 * To date From Lepton-Photon 2007 Recent (Summer 2007) results include: QCD and jet physics Heavy flavor results (c- and b-quark) Top quark results Higgs New physics searches Comment on a small selection - a few general -Geneva group

A. Clark 4 CDF Run II - Integrated Luminosity Peak initial luminosity 2.92x10 32 cm -2 s -1 CDF to tape 3.4 fb -1 delivered 2.7 fb -1 to tape - Increased luminosity entails increased analysis complication - key to increased integrated luminosity is lifetime and reliability - expect 6-7 fb -1 by end of run period?

A. Clark 5 Highlights of CDF Run II - QCD and inclusive JET cross-section Di-jet production Inclusive jet production central jets sensitive to new physics at high Q 2 forward jets at same Q 2, lower x, sensitivity to PDF’s a key ingredient in understanding SM processes as background to new physics

A. Clark 6 Highlights of CDF Run II - Z/W + jets production Z+ jets production (1.7 fb-1) W+jets production (320 pb-1) Z+b-jet production (1.5 fb-1) Test of pQCD at high Q 2 Key background to new physics processes (e.g. Z( )+jets background to SUSY search in E T +jets channel

A. Clark 7 Highlights of CDF Run II - B s  In SM B s  is suppressed (need FCNC) SM predicts SUSY can enhance BR by > order of magnitude Result: L ~ 2fb -1 No excess seen A key early measurement for LHC

A. Clark 8 Highlights of CDF Run II - B s  Neural net analysis expoiting good B s and B d mass resolution 3 events in B s window, 6 in B d window

A. Clark 9 Highlights of CDF Run II - diboson production (non - Geneva) WZ production. 1st. Observation Oct (WZ -> 3 lepton+ missing E T. Updated to 1.9 fb -1 Trilinear gauge couplings 1st. measurement ZZ production. 1st. Evidence (ZZ->ll and ZZ->llll (~1.5 fb -1 )

A. Clark 10 Highlights of CDF Run II - triple gauge couplings (non - Geneva) Key background to new physics processes (e.g. Z( )+jets background to SUSY search in E T +jets channel

A. Clark 11 CDF Run II highlights - WW/WZ semileptonic search (A. Sfyrla) e ± or µ ±

A. Clark 12 CDF Run II highlights - WW/WZ semileptonic search (A. Sfyrla) PRELIMINARY Background subtracted Blind analysis Integrated luminosity ~1.21 fb-1 Central µ ± and e ± for semileptonic W ± 60<m JJ <100 GeV signal region (80% of the expected W signal) Good agreement between µ ± and e ± analyses Expected significance using present data sample of ~2.5  Expected # events ~15900 Measured # events = Measured # signal events = 410±212 Measured significance = 1.94  S x BR (exp) = 1.49 ± 0.77 pb S x BR (th) = 2.1 ± 0.2 pb

A. Clark 13 Highlights of CDF Run II - t-quark mass (and W-mass) From wine & cheese, 10 August 2007

A. Clark 14 Highlights of CDF Run II - SM Higgs boson expectation m W vs. M t Perspective: Today: S. Heinemeyer, W. Hollik, D. Stockinger, A.M. Weber, G. Weiglein '06

A. Clark 15 Highlights of CDF Run II - a summary of SM Higgs boson search The results shown are 95% CL limits for the SM Higgs. In case of (e.g.) MSSM or SUGRA Higgs or similar, results no longer apply

A. Clark 16 Highlights of CDF Run II OTHER RECENT GENEVA RESULTS

A. Clark 17 CDF Run II highlights - W helicity in t-decays (S. Moed) fb -1 - W helicity in t-decay fixed by m t, m W, V-A structure of tWb vertex - f - =f LH ~30%, f o =f long ~70%, f + =f RH ~0.036% in SM - fully reconstruct (lepton+jet events), measure cos  * - fit with unbinned likelihood 1D fit: (fixed f 0 or f + ) f o = 0.57±0.11(stat)±0.04(sys) f + < 0.07 (95% CL) 2D fit: f o = 0.61±0.20(stat)±0.03(sys) f + = -0.02±0.08(stat)±0.03(sys)

18 Measurements using SVT triggered sample See talk of Sofia Vallecorsa Data is compared to LO and CDF Run II highlights - Contributions from Geneva - the SVT trigger OTHER Run II analyses:

A. Clark 19 6: Conclusions and Outlook Rigorous comparison of SM processes with NLO/LO expectations Search for evidence of new physics Development of new analysis techniques relevant to LHC Expect to double data set in 2008, reach 6-7 fb -1 be Oct CDF (+D0) have unprecedented data sets -Goals of Run II being met m t, m W, Dm s, …. - Major t-quark, diboson studies in SM