Approved CDF Top Group Results
LEP Electroweak Working Group and Tevatron Electroweak Working Group and D0 Top Group and TeV4LHC workshop
 
CDF II Top Quark Group Physics Results
top quark mass, pair & single production, top quark properties 		Colour Key
New results with 1000pb-1
Results with 750pb-1
Other New results

  • Top Turns Ten!

  • Latest CDF results and Recent talks by CDF speakers
  • Archive of conference notes and past results
  • All CDF papers
  • Information about the CDF Vertex b-tag algorithm
    • Last updated February 18 2005 with 15% higher b-tag efficiency
  • Information about the CDF jet energy scale.
    • Last updated February 22 2005 with about 50% reduction in total uncertainty from previous Run II estimate. This is the majority of the work needed for the world's best top quark mass measurement released by CDF on March 31 2005.
    • Determination of the Jet Energy Scale at the Collider Detector at Fermilab A. Bhatti et al. Submitted to Nucl. Instr. Meth. A October 18 2005. Accepted 24-May-2006 (NIMA45490) Recieved at Elsevier 30-May-2006. hep-ex/0510047 and online DOI link for NIMA .

    • Tevatron July 2006 combination of CDF+D0 Run I+II results:
    Top quark mass = 171.4 +- 2.1 GeV

    Effect on global electroweak fit and Standard Model Higgs boson

    Effect on MSSM

    eps eps

    observed limits assume no single top
    All CDF measurements
    (last updated 07/26/2006)

    gif and eps     		Top quark mass
    Overview   Tevatron combination
    CDF prospects   Tevatron prospects
    >
    (gif) (eps)     		CDF and D0 best
    (last updated 07/26/2006)
    gif and eps
    Channel Description
    (Link to web-page)         		Measurement Integrated Luminosity (pb-1) Date Approved
    best single measurement in each channel
    CDF only    		 Combination
    Future prospects    		 170.9 +-1.4(stat) +- 1.9(syst) GeV/c2
    170.9+-2.4 GeV/c2     		1030 07/20/2006 Preliminary Conf. Note 8383
    lepton+jets
    CDF best     		Matrix Element with in-situ W->jj jet energy scale calibration
    >=1 Vertex b-tags
    == 4jets     		170.9 +-2.2 (stat+JES) +- 1.4 (syst) GeV/c2
    170.9 +- 1.6 (stat) +- 2.0(JES+syst) GeV/c2
    = 170.9 +- 2.6 GeV/c2
    Best single measurement in the world!     		940 07/06/2006 Preliminary Conf. Note 8375
    lepton+jets
    Mtoprecowith in-situ W->jj jet energy scale calibration (JES)
    0+1+2 Vertex b-tags     		173.4 +- 2.5 (stat+JES) +- 1.3(syst) GeV/c2
    173.4 +- 1.7 (stat) +- 2.2(JES+syst) GeV/c2     		680 02/16/2006
    Preliminary Conf. Note 8125
    Previous result
    PRL 96 022004
    PRD 73 032003
    lepton+jets Lxy of bjet
    >=1 Vertex b-tags         		183.9 +15.7-13.9 (stat) +- 5.6 (syst) GeV/c2 695 02/16/2006
    Preliminary Conf. Note 8133
    lepton+jets Dynamic Likelihood
    >=1 Vertex b-tags
    == 4 jets     		173.2 + 2.6 -2.4 (stat) +- 3.2 (syst) GeV/c2 318 05/26/2005
    FINAL!
    PRL 96 022004
    PRD 73 092002
    lepton+jets Multivariate
    >=1 Vertex b-tags    		 179.6 +6.4-6.3 (stat) +- 6.8 (syst) GeV/c2 162 05/13/2004
    Preliminary Conf. Note 7102
    dilepton e-e,e-mu,mu-mu
    CDF best    		 Matrix Element 164.5 +- 3.9 (stat) +- 3.9 (syst) GeV/c2 1030 07/06/2006
    Preliminary Conf. Note 8369
    Previous Result, PRL 96 152002
    PRD 74 032009
    dilepton e-e,e-mu,mu-mu
    		Matrix Element as above with Vertex b-tags 167.3 + 4.6 (stat) +- 3.8 (syst) GeV/c2 955 07/20/2006
    Preliminary Conf. Note 8401
    dilepton e-e,e-mu,mu-mu Dynamic Likelihood Method 166.6 + 7.3 -6.7 (stat) +- 3.2 (syst) GeV/c2 340 12/1/2005
    dilepton e-e,e-mu,mu-mu Combination 167.9 +- 5.2 (stat) +- 3.7 (syst) GeV/c2 340 11/03/2005
    FINAL!
    PRL 96 152002
    dilepton lepton+isolated track &nu weighting 170.7 + 6.9- 6.5 (stat) +- 4.6 (syst) GeV/c2 359 06/28/2005
    FINAL!
    PRL 96 152002
    PRD 73 112006
    dilepton e-e,e-mu,mu-mu Mreco template
    + ttbar Pz     		168.1 + 5.6- 5.5 (stat) +- 4.0 (syst) GeV/c2 1020 10/12/2006
    Preliminary Conf. Note 8554
    Previous result
    PRL 96 152002
    PRD 73 112006
    dilepton e-e,e-mu,mu-mu Mreco template
    + &phi of &nu1 and &nu2     		169.7 + 8.9 -9.0 (stat) +- 4.0 (syst) GeV/c2 340 07/14/2005
    FINAL!
    PRL 96 152002
    PRD 73 112006
    all hadronic Ideogram Method 177.1 +-4.9 (stat) +- 4.7 (syst) GeV/c2 310 pb-1 3/30/2006
    Preliminary Conf. Note 8233
    all hadronic Template Method 174.0 +-2.2 (stat) +- 4.8 (syst) GeV/c2 1020 pb-1 7/23/2006
    Preliminary Conf. Note 8420
    met + jets
    (orthogonal to lepton+jets, high acceptance for taus)    		 HT Template Fit 172.3 +10.8-9.6 (stat) +- 10.8 (syst) GeV/c2 310 pb-1 10//2006
    Preliminary Conf. Note 8573
    Top quark pair production: cross-section
    Results quoted here for an assumed top quark mass of 175 GeV/c2
    (last updated 03/03/2006 - mass dependence moved to CDF 172.0+-2.7 GeV)
    Summary (eps) Mass dependence (eps) sqrt{s} dependence (eps)
    Combination all channels
    7.3 +- 0.5 (stat) +- 0.6 (syst) +- 0.4 (lumi) pb     		760 02/23/2006
    Preliminary Conf. Note 8148
    dilepton e-e, e-mu, mu-mu
    CDF best    		 two identified leptons 8.3 +- 1.5 (stat) +- 1.1 (syst) pb 750 02/14/2006
    Preliminary Conf. Note 8103
    dilepton lepton+isolated track 10.1 +- 2.2(stat) +- 1.3(syst) +- 0.6 (lumi) pb 360 09/23/2005
    Preliminary Conf. Note 7942
    dilepton inclusive 8.5 + 2.6 - 2.2 (stat) +0.7-0.3 (syst) pb
    for top mass of 178 GeV    		 360 04/20/2006
    Preliminary Conf. Note 8146
    lepton+jets neural network (fit) 6.0 +- 0.6 (stat) +- 0.9 (syst) pb
    		 760 02/14/2006
    Preliminary Conf. Note 8092
    lepton+jets
    CDF best    		 Secondary vertex b-tag 8.2 +- 0.6 (stat) +-1.0 (syst) pb 695 02/16/2006
    Preliminary Conf. Note 8110
    ~300 pb-1 Result, PRL 97 082004
    lepton+jets Secondary vertex b-tag + NN-btagger 8.5 +- 0.6 (stat) +-1.0 (syst) pb
    cross check of the Secondary Vertex tag xs     		695 04/20/2006
    Pleriminary Conf. Note 8272
    lepton+jets Jet probability b-tag 8.9 +- 1.0 (stat) +- 1.1 (syst) pb (mtop= 178 GeV) 318 FINAL!
    08/04/2005
    PRL 97 082004
    PRD 74, 072006 &
    hep-ex of PRD
    lepton+jets Vertex b-tag + lead jet Et (fit) 6.0 +- 1.6 (stat) +- 1.2 (syst) pb 162 FINAL 09/10/2004
    PRD 71, 072005
    lepton+jets Soft muon b-tag 7.8 + 1.7 (stat) +1.1 - 1.0 (syst) pb 760 pb-1 9/28/06
    Preliminary Conf. Note 8565
    ~200 pb-1 Result: PRD 72, 032002
    MET+jets Vertex b-tag 6.1 +- 1.2 (stat) + 0.9 - 0.7 (syst) pb 311 FINAL!
    03/23/2006
    PRL 96 202002
    all-hadronic Vertex b-tag 8.3 +- 1.0 (stat) + 2.0 - 1.5 (syst) +- 0.5 (lum) pb 1020 07/20/2006
    Preliminary Conf. Note 8402
    300 pb-1 Result: hep-ex & PRD 74 072005
    W+jets
    lepton+jets xs of b-jet with W boson in W+1,2 jet 0.90 +- 0.20 (stat) +- 0.26 (syst) pb 695 07/06/2006
    Preliminary Conf. Note 8410
    lepton+jets W+jets with Vertex and soft muon b-tags No discrepancy seen 162 05/26/2005
    FINAL!
    PRD 73 051101
    Search for Single Top Quark production
    Future
    lepton+jets Neural Network s+t channel <3.4 pb @ 95% C.L.
    t-channel <3.1 pb @ 95% C.L.
    s-channel <3.2 pb @ 95% C.L.
    expected limits assume no single top    		 695 03/16/2006
    Preliminary Conf. Note 8185
    lepton+jets Multivariate Likelihood Function s+t channel <2.7 pb @ 95% C.L.
    best fit t-channel = 0.2 pb
    best fit s-channel = 0.1 pb
    (2-d error distn for best fit)    		 955 pb-1 10/25/2006
    Preliminary Conf. Note 8585
    03/16/2006
    Previous Conf. Note 8185 with 695 pb-1
    lepton+jets Matrix Element Discriminant s+t channel = 2.7 +1.5 -1.3 pb
    obs p-value(1-CLb)=1.0% (2.3 sigma)    		 955 pb-1 10/25/2006
    Prelim. Conference Note 8588
    lepton+jets Compatibility Studies for Single Top Results Correlation coefficient for Matrix Element & Likelihood Function analyses = 53.3%
    Compatibility of outcomes 4%-6%    		 955 pb-1 10/25/2006
    Conference Note coming after Combination
    Top quark production and decay properties
    lepton+jets Search for resonances in ttbar mass spectrum, template method 95% C.L. on &sigma ×BR(X->ttbar) 955 pb-1 10/13/2006
    Preliminary Conf. Note coming soon!
    lepton+jets Search for resonances in ttbar mass spectrum, matrix element + template 95% C.L. on &sigma ×BR(X->ttbar) 680 pb-1 02/14/2006
    Preliminary Conf. Note 8087
    lepton+jets Search for a Massive t' Quark t' mass > 258 GeV at 95% CL 760 pb-1 03/16/2006
    Preliminary Conf. Note 8495
    previous result
    Note 8003
    lepton+jets Top Quark Lifetime cτtop < 52.5 μm @ 95% C.L. 318 02/14/2006
    Preliminary Conf. Note 8104
    dilepton Search for Anomalous Kinematics 1.0-4.5% 194 FINAL 12/10/2004
    PRL 95 022001
    lepton+tau t->&tau &nuq 5 obs vs 2.7+-0.4 bkg
    p-value 15%, or 1sigma excess     		350 4/20/2006
    Preliminary Conf. Note 8376
    previous result
    PLB 639 172
    dilepton, lepton+jets, single and double Vertex b-tags BR(t->Wb)/BR(t->Wq) 1.12 + 0.21 - 0.19 (stat) + 0.17 -0.13 (syst)
    > 0.61 @ 95% C.L.    		 162 FINAL 05/27/2005
    PRL 95, 102002
    dilepton, lepton+tau, lepton+jets single and double Vertex b-tags Search for Charged Higgs in top decays Limits on BR(t->H+b) 194,162 FINAL 10/24/2005
    PRL 96, 042003
    lepton+jets Top Production Mechanism 0.25+-0.24(stat)+-0.10(syst)
    for xs(gg->ttbar)/xs(ppbar->ttbar)     		330 06/11/2006
    Preliminary Conf. Note 8416
    W Helicity
    Plain English explanation
    lepton+jets cos&theta * F0= 0.61 +-0.12(stat) +-0.04 (syst)
    F+ < 0.11 @ 95% C.L.    		 955 06/29/2006
    Preliminary Conf. Note 8368
    dilepton, lepton+jets
    (Run II)     		Mlb2 F+ < 0.09 @ 95% C.L. 750 05/11/2006
    Preliminary Conf. Note 8280
    submitted to PRL hep-ex/0608062
    lepton+jets cos&theta * F0= 0.59 +-0.12(stat) +0.07-0.06(syst)
    F+ < 0.10 @ 95% C.L.    		 955 07/13/2006
    Preliminary Conf. Note 8380
    lepton+jets Combined cos&theta * and Lepton Pt spectrum F0= 0.74 +0.22 -0.34 (stat+syst)
    F+ < 0.27 @ 95% C.L.    		 162 FINAL 11/08/2005
    PRD 73 111103
    dilepton, lepton+jets
    Run I     		Mlb2 F+ < 0.18 @ 95% C.L. 109 FINAL 05/23/2004
    PRD 71, 031101 (2005)


  • Top Discovery in 1995
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