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Status of e μ low-p T trileptons

Status of e μ low-p T trileptons. Melisa Rossi Udine University. Outline . Data and MC Lepton Selection Dilepton events Dielectron Dimuon Electron-Muon Conclusions - Next. Data and MC. Data SUSY dilepton dataset edil0d Good run list v7 no silicon 224pb -1 up to February 2004

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Status of e μ low-p T trileptons

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  1. Status of eμ low-pT trileptons Melisa Rossi Udine University SUSY meeting

  2. Outline • Data and MC • Lepton Selection • Dilepton events • Dielectron • Dimuon • Electron-Muon • Conclusions - Next SUSY meeting

  3. Data and MC • Data • SUSY dilepton dataset edil0d • Good run list v7 no silicon • 224pb-1 up to February 2004 • Dielectron events: DIELECTRON_CENTRAL_4 trigger • Dimuon events: DIMUON_CMUPCMUP4 trigger • Electron-Muon events: CEM4_CMUP4 trigger • MC • Signal “Anadi Point” (Vadim) • DY sexo8t (Z ll, Inv mass>5GeV/c2) • ttbar (ttopel) • WW (wtop1w) • ZZ (Purdue) SUSY meeting

  4. Lepton Selection • High pT (>20GeV/c) CEM and CMUP selection • Standard top/ewk definition • 4-20GeV/c pT range • Muon ID as in CDF 7197 (Purdue) • Electron ID as high pT • CEM ID Scale Factors • CMUP ID Scale Factors • SF ET CDF note • 1.00 4-8GeV 7379 • 1.03 8-20GeV 7233 • 0.996 >20GeV 7309 • SF PT CDF note • 0.85 4-20GeV 7197 • 0.881 >20GeV 7309 SUSY meeting

  5. Dilepton Control Regions • CR1: Z window • 76 ≤ Mee≤ 106 GeV/c2 • CR2 : outside Z (diluted signal box) • MET>15 GeV • 15 < Mee< 76 and Mee> 106 GeV/c2 SUSY meeting

  6. Electrons ID • Χ2stripProblem CDF7309 BUG OFFICIAL FIXED SUSY meeting

  7. CEM CEM -- CR1-- 224pb-1 SUSY meeting

  8. CEM CEM -- CR2 -- 224pb-1 SUSY meeting

  9. CEM CEM -- 224pb-1 SUSY meeting

  10. CEM CEM -- 224pb-1 SUSY meeting

  11. CMUP CMUP-- CR1 -- 224pb-1 SUSY meeting

  12. CEM CMUP -- CR2 -- 224pb-1 CEM 20 GeV & CMUP 8 GeV SUSY meeting

  13. CEM CMUP -- CR2 -- 224pb-1 CEM 8 GeV & CMUP 5 GeV OR CEM 5 GeV & CMUP 8 GeV SUSY meeting

  14. CEM CMUP -- CR2 – 224pb-1 CEM 20 GeV & CMUP 8 GeV CEM 8 GeV & CMUP 5 GeV OR CEM 5 GeV & CMUP 8 GeV SUSY meeting

  15. Conclusions ans Next • CEM CEM • Fixed Χ2strip bug • Difference with John from 15% to 5% • CMUP CMUP • reasonable Zμ μ • CEM CMUP • (20,8) selection ~25events • (5,8) selection ~ 50 events • Investigate discrepancies • High MET for cmup cmup • Low MET for cem cmup • Add last MC samples • Calculate fakes SUSY meeting

  16. CMUP CMUP 224pb-1 SUSY meeting

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