CDF IFC Meeting Fermilab, October 30th

1. CDF IFC MeetingFermilab, October 30th Jaco Konigsberg & Rob Roser

2. The CDF Collaboration Europe 20 institutions North America 34 institutions Asia 8 institutions The CDF Collaboration 14 Countries 62 institutions 635 authors

3. CDF Publication History • Publications submitted+accepted+published • ~140 Run 2 publications and ~20 papers submitted but not published • Expect ~40 publications in 2007 • We also have >50 additional papers under internal review ! We are publishing our results as we go !

4. Some CDF Run 2 Physics Highlights • Observation of Bs-mixing • Δms = 17.77 +- 0.10 (stat) +- 0.07(sys) • Observation of new baryon states • b and b • Observation of new charmless B=>hh states • Evidence for Do-Dobar mixing • Precision W mass measurement • Mw = 80.413 GeV (48 MeV) • Precision Top mass measurement • Mtop = 170.5 (2.2) GeV • W-width measurement • 2.032 (.071) GeV • WZ observation (6-sigma) • Measured cross section 5.0 (1.7) pb • ZZ evidence • 3-sigma • Single top evidence(3-sigma) with 1.5 fb-1 • Measured cross section = 3.0 (1.2) pb • |Vtb|= 1.02 ± 0.18 (exp.) ± 0.07 (th.) • Significant exclusions/reach on many BSM models • Constant improvement in Higgs Sensitivity

5. CDF Wine and Cheese Talks • Since last September: • Sept 22: B_s Mixing observation [Christoph Paus] • October 20: Σb observation [Petar Maksimovic] • October 25: WZ observation [Elliot Lipeles] • October 27: B ==>hh observation [Giovanni Punzi] • November 10: All-hadronic Top [Fabrizio Margaroli] • December 1: Status of Single Top [Bernd Stelzer] • January 5: W mass measurement [Ashutosh Kotwal] • February 2: h==>tau,tau [Anton Anastasov] • March 23: Heavy long-lived particle searches [Max Goncharov] • March 30:Small x and Diffractive Physics [Koji Terashi] • April 20:W-width measurement [Dave Waters] • June 8: SM Higgs Search [Ben Kilminster] • June 15: Observation of Cascade_b [Dmitri Litvintsev] • June 22: Global Analysis of high-Pt data [Bruce Knuteson] • August 10: New results for Lepton-Photon [Mark Neuebauer] • August 24: Boson+jets measurements [Oriol Salto] • Sept 28: MSSM higgs searches [Tom Wright] • Two upcoming dates in December

6. New results at/since Lepton-Photon 2007 • http://www-cdf.fnal.gov/internal/physics/joint_physics/S07CDFResults.html • Rich program from all Physics Groups • ~ 50 new results since April '07 • ~ 30 use the full available dataset

7. New results at Lepton-Photon 2007

8. New results at Lepton-Photon 2007

9. August 2006 August 2006 FY07 Tevatron Performance A stellar year ! • No major hikes in inst. Lum expected anymore • We can plan and extrapolate

10. extrapolated from FY09 Tevatron Luminosity Projections FY10

11. Tevatron Luminosity • FY08 will be the first year we will NOT double our luminosity • Trigger design already comfortably handling the instantaneous lum we expect • Effort will be to refine - a very different position than what we have had to do in the past…

12. Data collection • Sources of inefficiency include: • Trigger dead time and readout ~ 5% • Intentional - to maximize physics to tape- also studies • Start and end of stores ~5% • Problems (detector, DAQ) ~5% ~3.2 fb-1 delivered ~2.7 fb-1 recorded ~85% recorded since 2003 ~80% of delivered lumgoes into analyses • Luminosity records: • Highest initial inst. lum • ~2.92e32 • Integrated lum/week • 45 pb-1 • Integrated lum/month • 165 pb-1 • Stacking rate • 23.1 mA/hr Great success Stable

13. Good running most of year: Doubled delivered and acquired luminosity! New shift crew arrangements ISL cooling leak 330pb-1 w/ east L00+ISL off First 6 months of 2007: 144pb-1/month delivered 121pb-1/month acquired 115pb-1/month w/SVX Accel. Performance down in April-June Took some time after sextapole changes to get back to good operating point Resumed high luminosity just before shutdown Data-taking efficiency

14. 2007 Shutdown Plans • Aug 6 - Oct 15 (10 weeks) • Accelerator complex: • New Booster correctors - proton plan • New MI collimator - proton plan • New “” power poles • RR maintenance - new DCCT (current measurement) • Tevatron maintenance • Measured roll of all dipoles and quads (Thanks CDF volunteers!) • Unrolled D16 quad (finally!) • Warmed 6 houses, replaced 2 dipoles & 2 spools • Replaced F17 kicker • CDF • Fix ISL cooling leak • General maintenance and repair

15. Leak in part of the Silicon cooling system Manifold good bad Cooling Pipes hole

16. Where are the ISL/L00 portcards? Manifold Leaks COT face Cooling Pipes Portcard ring Cables ISL/L00 portcard ring Impossible to access from outside, isolated by volume full of cables, ~60cm in z.

17. ISL Cooling Repair • Keep the silicon cold and dry: • Plastic barrier encloses wire chamber bore, 600cuft volume. • Desicant based air drier will provide 300cfm to the volume. Dewpoint always below –10 C. • Cover holes with epoxy from the inside of the pipe using borescopes and catheters. Hole Repairs performed over a month with 4 people shifts lead by FNAL specialist (“head surgeon”) Ken Schultz. • Vacuum tests show that the Al lines are as tight as the stainless steel ones • Cooling has been running stable for more than a month • Full system is ready for next run

18. Silicon status & lifetime Silicon Aging Like Fine (Italian, French, Spanish, Californian, Canadian, Japanese, Korean, Taiwanese, Swiss, British, Finish, Russian, German) Wine Silicon should operate well for the duration of Run 2

19. COT Gain vs. Time Inner layer Outer layer Jan.2002 Aug.2005 Central Tracker… • Aging under control • See affect of increase in instantaneous luminosity • Increased O2 in Feb ‘07

20. People: Summary • People are migrating to the LHC [and other experiments] • This is not new, started a long time ago • We’ve taken many measures to mitigate the impact on the experiment • We have stabilized, streamlined and automated many tasks in operations and in physics analysis • We spend considerable effort retaining, recruiting and planning ahead • But very importantly: • Luminosity increase has made a tremendous difference • The experiment is running very well • Very rich and exciting physics program • LHC delays have also made a difference • Many opportunities for people to make a mark here: physics and leadership • The collaboration age profile is ==> young, yet excellent • Try to keep senior people engaged at all levels • We have focused our physics program through Higgs Enough people to run the experiment in FY09 and accomplish the physics

21. Summary Table of February 2007 Resource Survey Table represents responses from all 63 institutions Numbers in Units of FTE

22. Comparison to 05 Survey… The delay in LHC turn-on AND the success of the Tevatron Luminosity has resulted in many more FTE’s available for CDF -- a 33% increase from what was projected in 2005

23. GAP Analysis – 2007 Needs * Used 2005 Offline numbers

24. Postdocs joining CDF last ~1.5 yrs • Examples [many were students at CDF that stayed on CDF] • Enrique Palencia: Cantabria ==> FNAL • Fabrizio Margaroli: Bologna ==> Purdue • Anadi Canepa: Purdue ==> Penn • Olga Norniella: Barcelona ==> UIUC • Craig Group: Florida ==> FNAL • Valentin Necula: Florida ==> Duke • Nathan Goldschmidt: Wisconsin ==> Florida • Alison Lister: Geneva ==> UC Davis • Jen Pursley: Hopkins ==> Wisconsin • Bo Jayatilaka: Michigan ==> Duke • Dan Krop ==> U. Chicago • Shang-Yuu Tsai: Academia Sinica, Taiwan • Sergo Jindariani: Florida ==> FNAL • Susan Burke: Arizona ==> FNAL • Manoj Kumar Jha: Delhi ==> Bologna • Diego Tonelli: Pisa ==> FNAL • Hyunsu Lee: Korea ==> U. Chicago • Tom Schwarz: Michigain ==> UC Davis • And others… ~ 20 new postdocs

25. Ch. Dorr Karlsruhe University K. Gibson CMU A. Holloway Harvard University V. Necula University of Florida M. Rossi University of Udine S. Sabik University of Toronto T. Schwarz University of Michigan A. Canepa Purdue University B. Cooper UCL N. Leonardo MIT A. Loginov ITEP, Moscow G. Salamanna University of Roma P. Catastini University of Pisa P. Squillacioti University of Pisa D. Tonelli University of Pisa I. Vollrath University of Toronto A. Attal UCLA, S. Baroiant UCDavis S. Bolshov MIT S.-H. Chuang University of Wisconsin S. Forrester UC Davis M. Griffiths University of Liverpool C. Group University of Florida B. Jayatilaka University of Michigan J. Kraus University of Illinois S. Lai University of Toronto M. Soderberg University of Michigan T. Akimoto University of Tsukuba O. Norniella Barcelona E. Palencia University of Cantabria X. Portell Barcelona K. Copic University of Michigan S. Harper Oxford University J. Lee University of Rochester V. Rekovic University of New Mexico H. Sun Tufts University V. Tiwari CMU B. Mohr UCLA G. Lungu U. of Florida PhD’s from last ~1.5 yrs ~ 40 and ~40 more expected this coming year

26. Some Physics Highlights

27. Jet Cross Section Results • Excellent agreement with QCD calculation over 8 orders of magnitude! • No excess any more at high ET • Large pdf uncertainties will be constrained by these data 8 orders of magnitude !!

28. Highest Mass Dijet Event: M=1.4 TeV 70% of the total energy went into 2 quarks!!!

29. B baryon Discoveries b b bc

30. Observation of WZ Production 3 leptons + MET 1.1 fb-1 NLO cross section: 3.7 ± 0.1 pb electrons muons From ~nothing to observation - same data- + new lepton types + more triggers + better analysis 1st pass: observed 2 events with expected background of 0.9 ± 0.2 and expected signal of 3.7 ± 0.3 Much of this being used in H=> WW Increased acceptance by adding plug calorimeter and tracks pointing to cracks: 16 obs vs 3 bcknd Same data Prob(background only) < 1.5x10-7 (5.1) 2 MET bins: Prob(background only) < 2 x10-9 (5.9) (WZ)=5.0+1.8-1.6(stat.+syst.) pb

31. Bs-mixing: from evidence to discovery 1 fb-1 in March 2006 1 fb-1 in July 2006 • 8 x 10-8 (> 5) prob. background fluctuation • Significant improvements on same dataset • Neural Nets for event selection & to combine opposite-side flavor tagging • Better particle ID • Inclusion of partially reconstructed decays • New trigger paths • + Group focus, the “I can almost taste it” effect

32. W Mass and Width

33. The Top Cross Section • Measured using many different techniques • Good agreement • between all measurements • Between data and theory • Data precision starting to challenge theory precision

34. New result 1 fb-1 Lepton+Jets: Matrix Element (1.7 fb-1) 172.7  2.1 GeV Top Mass Only new results for summer!

35. Measuring the Properties of the Top Quark Decay Lifetime W Helicity Cross section w/2b T’ search M_ttbar XS Event Kinematics

36. Single Top History 2004: Simple analysis while refining Monte Carlo samples and analysis tools 2006: Established sophisticated analyses Check robustness in data control samples 2 years Phys. Rev. D71 012005 • Development of powerful • analysis techniques • (Matrix Element, NN, • Likelihood Discriminant) • NN Jet-Flavor Separator • to purify sample • Refined background • estimates and modeling • Increase acceptance • (forward electrons) • 10x more data First Tevatron Run II result using 162 pb-1 single top < 17.5 pb at 95 % C.L. 2007: 3- evidence for single top quark production using 1.5 fb-1

37. Single Top Results 3.1 Evidence Matrix Element Method Expected Sensitivity 3.0 Observed p-value = 0.09% / 3.1 Expected p-value = 0.13% / 3.0 Likelihood Method New! s+t= 3.0 ± 1.2 pb s= 1.1, t =1.9 pb s+t= 2.7 ± 1.2 pb s= 1.1, t =1.3 pb |Vtb|= 1.02 ± 0.18 (expt) ± 0.07 (theory*) Expected sensitivity: 2.9 Observed significance: 2.7 *Z. Sullivan, PRD 70 114012 (2004)

38. Running through 2010

39. Conclusion • We believe strongly that DOE should plan to run through FY2010 • An early recommendation by P5 would help the planning effort for the lab and collaborations.

40. Running on 2010 • It is about the possibility of a discovery • The more luminosity the better the chances • True for the Higgs • True for all possible sources of new physics • The detector will run fine • The lab is committed to running • We need your support

41. Process and people • Program driven by intellectual curiosity and the thrill of possibility • People tend to go after the physics that are accessible to them first • Pragmatic and sociological reasons • Then they push and innovate • Especially when they see the possibilities • And things start to come together • It is engrained in us to want to make progress • We get creative, adaptive and adoptive and, most importantly: we learn from the data all the time • One cannot fully lay out a roadmap and know where every measurement or search will end up, given time and more data • Sqrt(L) is a myth in hadron collider physics, except at the very very end, when there is nothing left to do but to surrender P5

42. CDF Higgs Effort • Over the last year there’s been a dramatic infusion of people, effort and ideas, aimed at finding the Higgs • Prior to that it was unclear that we will get sufficient luminosity to have enough reach • As the luminosity increased we’ve reached other low cross section physics processes: WZ, single-top • The tools developed for these analyses are recently migrating into the Higgs effort This is now the priority of the collaboration P5

43. CDF alone, in perspective… Run 1 0.1 fb-1 1 yr Lum+effort 0.3-1.0 fb-1 1-2 fb-1 P5

44. Summer 2007 (Lepton-Photon) CDF & D0 @ 115 ~4x SM @ 160 ~2x SM P5

45. 2007 projections [yellow] • They are based on the following improvements • Some that have already gone into existing Higgs analysis but need to be propagated across all channels • Some that are based on existing tools that are being used on other analysis and still need to be propagated on Higgs analysis (i.e. NN tagger & taus) • Some that come from including data from triggers that have not yet been used in Higgs analysis • Only includes pieces that have been demonstrated and does not include things that still need more work • Result in x{1.5 to 2.25} improvement in sensitivity These are in hand P5

46. Ex. of improvements not yet on Higgs analyses Standard secondary vertex b-tagging Mistag rate Tagging Efficiency Improved b-tagging Forward tracking Forward b-tagging Improved Jet E res BMU muons

47. Higgs status and projections 115 GeV • Significant progressfrom 2005 to 2007 • At 115 = x1.8 in sensitivity • At 160 = x2.0 in sensitivity 160 GeV 95% CL 2005 projections long lever arm - large uncertainty - 2007 projections grounded in data 95% CL P5

48. With 5.5 fb-1 tougher: • Exclude 140:180 range • 3-sigma in one point: 160 5.5 Higgs reach - achievable - • With 7 fb-1 • exclude all masses !!! [except real mass] • 3-sigma sensitivity 150:170 • LHC’s sweet spot X2.25 7.0 We think this is compelling Analyzed Lum.

49. On any given roll of the dice Analyzed Lum. Analyzed Lum. Solid lines = 2.25 improvement Dash lines = 1.50 improvement “further” @ 115 GeV 7 fb-1 => 70% experiments w/2 30% experiments w/3 “further” @ 160 GeV 7 fb-1 => 95% experiments w/2 75% experiments w/ 3

50. b 0 b It’s not just the Higgs Same-sign dileptons Mtt distribution Note to self: test these distributionswith as much data as possible !