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Recent CDF B Results

Recent CDF B Results. HPC ASIA 2007, Particle & Nuclear Physics Daejung Kong Sep. 12 2007. Outline Tevataron Performance CDF Performance Recent CDF B Results Data Processing/Analysis @ CDF. Tevatron. Accelerator delivers. Accelerator & CDF performance. 3.0 fb -1 delivered

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Recent CDF B Results

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  1. Recent CDF B Results HPC ASIA 2007, Particle & Nuclear Physics Daejung Kong Sep. 12 2007

  2. Outline • Tevataron Performance • CDF Performance • Recent CDF B Results • Data Processing/Analysis @ CDF HPC 2007 Nuclear & Particle Physics

  3. Tevatron HPC 2007 Nuclear & Particle Physics

  4. Accelerator delivers.. Accelerator & CDF performance 3.0 fb-1 delivered 2.5 fb-1 to tape • Instant L ~ 2.9x1032 • CDF II accumulated data of 3.0 fb-1 • CDF Detector performs well, including silicon detectors • Expect 4~6 fb-1 more by 2009~2010. HPC 2007 Nuclear & Particle Physics

  5. CDF Detector • Solenoid • 1.4Tesla • Silicon Tracker • || < 2 • svertex ~ 30 mm • Central Outer Tracker (COT) • 96 layers drift chamber, up to ||~1 • sPT/PT~ 0.15% PT • Particle ID with dE/dx • Time of Flight • Particle ID of low momentum tracks • Muon chamber • 4 layers drift chamber outside the calorimeter • || < 1 HPC 2007 Nuclear & Particle Physics

  6. Crossing: 396 ns, 2.5 MHz Level 1: hardware Electron, Muon, track, missing Et 15-20kHz (reduction ~x200) Level 2: hardware Cal. Cluster, jet finding, Silicon track 300-350 Hz (reduction ~x5) Level 3: Linux PC farm ~ Offline quantities 50-70 Hz (reduction ~ x6) CDF Trigger System Overview HPC 2007 Nuclear & Particle Physics

  7. Summer Shutdown 2007 Start date : Aug 5, 2007. Duration : 10 week (+ 2 weeks of TeV studies) ISL cooling PMT, Online • Aug 5 Beam off • Aug 6 ~ Sep 24 Detector Open ~ works • Oct 1 Close up • Oct 8 Detector Checkout • Oct 15 ~ Oct 22 TeV Startup • Oct 29 Collisions HPC 2007 Nuclear & Particle Physics

  8. CDF Collaboration • 13 countries • 60 Institutes • 500 people HPC 2007 Nuclear & Particle Physics

  9. CDF & Korean Activities CDF Korea group CDF Publications * ~3% of CDF collaborators • CDF Korea group contributes to some essential aspects of CDF operation • Korea group’s publications ~10% of CDF papers in 2006 HPC 2007 Nuclear & Particle Physics

  10. QCD b-bbar dijet production cross section Z+jets cross section measurement Z b-bbar Dijet production cross section measurement B Physics CP, Mixing Spectroscopy Lifetime measurements Rare decay searches New Phenomena Search for New Particles Coupling to Z+jets (b'->Z+b) SUSY High-mass dielectron (Z’ search) Top Top mass, width Production cross section Search for W' using the single top sample Top Production Mechanism (gg vs qq) EWK WZ production ZZ production W mass, width Higgs HttSUSY Higgs HWW ME-based analysis ZHllbb 2D-NN and MET fitter analysis CDF Physics Programs HPC 2007 Nuclear & Particle Physics

  11. B Physics & B Triggers CDF: , |y| < 1 b Production cross section: PRD71, 032001 (2005) Large Cross section ! • Heavy states produced • B0, B+, Bs, Bc, b, Σb, b • Di-muon trigger(lifetime, mass, branching ratios, ∆G/G) • pT() > 1.5 GeV/c, within J/y mass window • Two displaced-tracks trigger(branching ratios, mixing) • pT > 2 GeV/c, 120 m ≤ d0≤ 1 mm,Lxy> 200 m, S pT > 5.5 GeV/c • Lepton + displaced-track trigger(lifetime, fbaryon, mixing) • pT(,e) > 4 GeV/c, 120 m ≤ d0≤ 1 mm, pT > 2 GeV/c HPC 2007 Nuclear & Particle Physics

  12. B Trigger (dimuon, hadronic) J/y trigger Hadronic B trigger B+ decays: Lb decays 2.8 K events Lb→Lcp 532 events Lb-> J/y L HPC 2007 Nuclear & Particle Physics

  13. B Trigger (dimuon) HPC 2007 Nuclear & Particle Physics

  14. B Physics Programs Dms=17.77±0.10(stat)±0.07 (syst) ps-1 : > 5sobservation • Bs Mixing • DGs • B mm • Observation ofSb • D Mixing ~ 5sobservation ~ 3sobservation HPC 2007 Nuclear & Particle Physics

  15. CDF Data Processing HPC 2007 Nuclear & Particle Physics

  16. CDF Run II Data Flow Dual Ported Disk B0 20 MB/s A APHYSR,ACOSMR,ATESTR B … C … D … E … F … G … H … I IPHYSR (inclusive stream) Level 3 Farm Consumer Server/Logger b0dau32 Detector DAQ CXFS 75 Hz 300Hz Writes events into Files 8 data streams based on dataset bits Defines ~50 primary Datasets FCC 20 MB/s 12 TB Tape Robot (tape archive) 1PB SCSI RAID arrays FCC Data Logger fcdfsgi1 Organizes: Files into Filesets Writes: Filesets to Tape fcdfsgi2 13 MB/s 20 MB/s Production Farm PCs GigaBit Switch IO fileservers /home /spool fcdflnx2 fcdflnx3 Concatenates files Output: ~50 primary Datasets Reconstructs Events HPC 2007 Nuclear & Particle Physics

  17. CDF Data Volume Volume Data Type(TB) No of Events(M) No of Files ------------------------------------------------------------------------------- Raw Data 804.4 5883.5 932026 Calibration 0.0 0.0 0 Production 905.5 7380.6 996789 MC 380.1 3177.6 463646 Stripped-Prd 40.0 490.1 44601 Stripped-MC 0.5 3.0 533 Ntuple 207.0 8674.4 206525 MC Ntuple 68.8 1103.2 64263 Test 0.0 486.6 167 Others 0.0 0.0 0 -------------------------------------------------------------------------------- Total 2406.2 27198.9 2708550 HPC 2007 Nuclear & Particle Physics

  18. CDF Data Volume in 2007 Yearly Volume Yearly Event Yearly File Data Type Increase (TB) Increase (M) Increase ----------------------------------------------------------------------------- Raw Data 259.2 1927.6 292773 Calibration 0.0 0.0 0 Production 386.3 2827.3 336723 MC 172.5 1144.0 173748 Stripped-Prd 14.6 108.3 12647 Stripped-MC 0.3 1.7 292 Ntuple 113.4 2959.5 95753 MC Ntuple 59.7 918.8 55867 Test 0.0 486.6 167 Others 0.0 0.0 0 ----------------------------------------------------------------------------- Total 1006.0 10373.7 967970 42% of Total Data Volume HPC 2007 Nuclear & Particle Physics

  19. CDF Raw Data Stream HPC 2007 Nuclear & Particle Physics

  20. CDF Raw Data Volume Prd Stream Volume (TB) No of Events (M) No of Files ------------------------------------------------------------------------------------ A 14.6 65.7 17044 B 95.7 640.7 96819 C 107.4 953.7 123284 D 5.6 16.4 5687 E 164.7 946.6 164456 G 113.6 797.9 120099 H 207.2 2199.5 248410 I 0.1 1.1 65 J 157.2 1417.7 171730 ------------------------------------------------------------------------------------ Total 866.1 7039.3 947594 HPC 2007 Nuclear & Particle Physics

  21. CDF Raw Data Volume in 2007 Yearly Volume Yearly Event Yearly File Prd Stream Increase (TB) Increase (M) Increase ------------------------------------------------------------------------ A 0.0 0.0 0 B 47.3 278.9 38945 C 56.3 491.2 56378 D 3.6 10.0 3521 E 86.5 450.1 73587 G 38.9 219.0 30557 H 69.4 701.6 63679 I 0.0 0.0 0 J 84.2 676.6 70056 ----------------------------------------------------------------------- 386.3 2827.3 336723 45% of Total Raw Data HPC 2007 Nuclear & Particle Physics

  22. CDF Data Stream H stream ['xbpp', 'hbpp', 'xbck', 'hbck'] ['xbhd'] ['hbhd'] J stream ['xpee', 'jpee', 'xbmm', 'xbel', 'xpmm', 'xbmu'] ['xrar', 'jbmm'] ['jbel'] ['jpmm'] ['jbmu'] ['jrar'] xpmm : J/psi dimuon HPC 2007 Nuclear & Particle Physics

  23. Data Analysis HPC 2007 Nuclear & Particle Physics

  24. Analysis Motivation • , one Candidate event reported at ALEPH(1993) • Nobody measured ratio of Bs Charmonium final state • is similar tofor DG/G measurement [PDG ‘04] [Babar‘02] ?? HPC 2007 Nuclear & Particle Physics

  25. HPC 2007 Nuclear & Particle Physics

  26. CDF J/psi(dimuon) Trigger Data xpmm = xpmm0d+xpmm0h+xpmm0i xpmm0d File Count: 4,060 Average File Size: 277.76MB Total File Size: 1.08TB Total Event Count: 24,782,207 xpmm0h File Count: 1,149 Average File Size: 904.94MB Total File Size: 1015.41GB Total Event Count: 20,632,030 xpmm0i File Count: 1,531 Average File Size: 1.33GB Total File Size: 1.98TB Total Event Count: 44,560,758 Total File Size ~ 4.08 TB Total Liminosity ~ 1.6 fb-1 • Collected b/w 2002.2 ~ 2007.7 • Detector • Silicon vertex Tracker • Central Tracker • Muon detector • Trigger • L1 - charged track (PT>1.5 GeV) matched muon detector • L2 - di-muon, opposite charge • L3 – di-muon mass (2.7 – 4.0 GeV) HPC 2007 Nuclear & Particle Physics

  27. Data Analysis Procedure Decay Channels Data Analysis Procedure CAF User Job sumbit SAM Output Skim O. Total File Size ~ 4.08 TB Total Liminosity ~ 1.6 fb-1 Real time : 29,200 hours CPU time : 23,877 hours -------------------------------- Output ntuple size = 226 GB -------------------------------- Skimmed output = 88 GB CAF : CDF Analysis Farm – batch systems SAM : Sequential Access via Metadata - data handling system HPC 2007 Nuclear & Particle Physics

  28. Reconstruction ofJ/y and y(2S) HPC 2007 Nuclear & Particle Physics

  29. Reconstruction ofB±, Bs ~ 3 times yield increased HPC 2007 Nuclear & Particle Physics

  30. Reconstruction ofB± ~ 3 times yield increased HPC 2007 Nuclear & Particle Physics

  31. Reconstruction ofBs ~ 3 times yield increased HPC 2007 Nuclear & Particle Physics

  32. Summary • CDF data Analysis performs well using CAF/SAM • CDF B physics is complimentary to B factories and/or provides new search & new physics • CDF Korean Group has important roles at CDF 1) First observation of , in both and modes 2) Using di-muon mode Published by PRL (PRL 96, 231801 2006) 3) Will continue to study new decay mode HPC 2007 Nuclear & Particle Physics

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