| DØ's Top Quark Physics Superseded Results |
| Channel | Method | Measurement | Uncertainty | Integrated Luminosity [pb–1, fb-1] |
Status |
| Top Quark Mass |
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| Lepton+jets, dilepton, and alljets |
Many methods | Eighth Tevatron combination 173.32 ±0.56 (stat) ±0.89 (syst) GeV = 173.3 ±1.1 GeV |
±0.61% | ≤ 5.6 | 7/20/10 arXiv:1007.3178 |
| Lepton+jets, dilepton, and alljets |
Many methods | Seventh world average measurement 173.1 ±0.6 (stat) ±1.1 (syst) GeV |
±0.75% | ≤ 3.6 | 3/13/09 arXiv:0903.2503 |
| Lepton+jets, dilepton, and alljets |
Many methods | Sixth world average measurement 172.4 ±0.7 (stat) ±1.0 (syst) GeV |
±0.7% | ≤ 2.1 | 8/3/08 arXiv:0808.1089 |
| Lepton+jets, dilepton, and alljets |
Many methods | Fifth world average measurement 172.6 ±0.8 (stat) ±1.1 (syst) GeV |
±0.8% | ≤ 2.1 | 3/7/08 arXiv.org:0803.1683 |
| Lepton+jets, dilepton, and alljets |
Many methods | Fourth world average measurement 170.9 ±1.1 (stat) ±1.5 (syst) GeV |
±1.1% | < 2.1 | 3/16/07 hep-ex/0703034 |
| Lepton+jets, dilepton, and alljets |
Many methods | Third world average measurement 171.4 ±1.2 (stat) ±1.8 (syst) GeV |
±1.2% | < 1.0 | 7/21/06 Technical note |
| Lepton+jets, dilepton, and alljets |
Many methods | Second world average measurement 172.5 ±1.3 (stat) ±1.9 (syst) GeV |
±1.3% | < 750 | 3/20/06 Technical note |
| Lepton+jets, dilepton, and alljets |
Many methods | First world average measurement 172.7 ±1.7 (stat) ±2.4 (syst) GeV |
±1.7% | < 320 | 7/21/05 Technical note |
| Lepton+jets and dileptons |
Many methods | DØ's measurements combined 175.08 ± 0.77 (stat) ± 1.25 (syst) GeV |
±0.84% | ≤ 5.4 | 4/25/11 Conference note Figures |
| Electron+muon | Neutrino weighting (topological) |
173.3 ± 2.4 (stat) ± 2.1 (syst) GeV | ±1.8% | 5.3 | 8/24/10 Conference note Figures |
| Dileptons | Neutrino weighting matrix weighting matrix elements |
174.7
± 2.9 (stat) ± 2.4 (syst)
GeV (includes lepton+track) |
±2.2% | ≤ 3.6 | 3/13/09 Conference note Figures |
| Electron+muon | Matrix elements (topological) |
174.8 ± 3.3 (stat) ± 2.6 (syst) GeV | ±2.4% | 3.6 | 3/13/09 Conference note Figures |
| Lepton+jets | Matrix elements with in-situ JES calibration (NN b-tagging) |
173.7 ± 0.8 (stat) ± 1.6 (syst) GeV | ±1.0% | 3.6 | 3/9/09 Conference note Figures |
| Lepton+jets and dileptons |
Many methods | DØ's measurements combined 174.2 ± 0.9 (stat) ± 1.5 (syst) GeV |
±0.98% | ≤ 3.6 | 3/13/09 Conference note Figures |
| Dileptons | Neutrino weighting (NN b-tagging and topological selection) |
176.0 ± 5.3 (stat) ± 2.0 (syst) GeV | ±3.2% | 1.0 | 7/25/08 Conference note Figures |
| Matrix weighting (topological) |
175.2 ± 6.1 (stat) ± 3.4 (syst) GeV | ± 4.0% | 1.0 | 8/9/07 Conference note Figures |
|
| Electron+muon | Matrix elements (topological) |
172.9 ± 3.6 (stat) ± 2.3 (syst) GeV | ±2.5% | 2.8 | 7/25/08 Conference note Figures |
| Lepton+jets, dileptons, and tau+lepton |
From the ttbar cross section |
169.6 +5.4 –5.5 (stat+syst) GeV | ± 3.2% | 1.0 | 7/25/08 Conference note Figures |
| Lepton+jets and dileptons |
Many methods | DØ's measurements combined 172.8 ± 0.9 (stat) ± 1.3 (syst) GeV |
±0.9% | ≤ 2.8 | 7/25/08 Conference note Figures |
| Lepton+jets | Matrix elements with in-situ JES calibration (NN b-tagging) |
DØ's most precise single measurement 172.2 ± 1.0 (stat) ± 1.4 (syst) GeV |
±1.0% | 2.1 | 7/25/08 Conference note Figures |
| Lepton+jets | Matrix elements (NN b-tagging) |
172.2 ± 1.1 (stat) ± 1.6 (syst) GeV | ± 1.1% | 2.1 |
3/7/08 Conference note Figures |
| Lepton+jets and dileptons |
Many methods | DØ's measurements combined 172.1 ± 1.5 (stat) ± 1.9 (syst) GeV |
± 1.4% | 1.0 | 9/26/07 Conference note Figure |
| Dileptons | Neutrino weighting (topological) |
172.5 ± 5.8 (stat) ± 3.5 (syst) GeV | ± 4.0% | 1.0 |
8/9/07 Conference note Figure |
| Lepton+jets | Matrix elements (NN b-tagging) |
170.5 ± 2.4 (stat+JES) ± 1.2 (syst) GeV | ± 1.6% | 910 |
3/10/07 Conference note Figures |
| Matrix elements (topological) |
170.5 ± 2.5 (stat+JES) ± 1.4 (syst) GeV | ± 1.7% | |||
| Electron+muon | Matrix weighting (topological) |
177.7 ± 8.8 (stat) +3.7 –4.5 (syst) GeV | +5.4% –5.6% | 830 |
7/20/06 Conference note Figures |
| Electron+muon | Neutrino weighting (topological) |
171.6 ± 7.9 (stat) +5.1 –4.0 (syst) GeV | +5.5% –5.2% | 830 |
7/20/06 Conference note Figures |
| Lepton+jets | Matrix element + in-situ JES calibration (topological selection) |
169.5 ± 4.4 (stat+JES) +1.7 –1.6 (syst) GeV | +2.8% –2.8% | 320 | 7/19/05 Conference note Figures |
| Lepton+jets | Template (lifetime tagging) |
170.6 ± 4.2 (stat) ± 6.0 (syst) GeV | +4.3% –4.3% | 230 | 3/1/05 Conference note Figures |
| Lepton+jets | Template (topological selection) |
169.9 ± 5.8 (stat) +7.8 –7.1 (syst) GeV | +5.7% –5.4% | 230 | |
| Lepton+jets | Ideogram (topological selection) |
177.5 ± 5.8 (stat) ± 7.1 (syst) GeV | +5.2% –5.2% | 160 | 8/12/04 Conference note Figures |
| Dileptons | Matrix weighting (lifetime tagging) |
176.6 ± 11.2 (stat) ± 3.8 (syst) GeV | +6.7% –6.7% | 370 | 3/9/06 Conference note Figures |
| Dileptons | Neutrino weighting (topological selection) |
175.6 ± 10.7 (stat) ± 6.0 (syst) GeV | +7.0% –7.0% | 370 | 3/9/06 Conference note Figures |
| Dileptons | Matrix weighting (topological selection) |
155 +14 –13 (stat) ± 7 (syst) GeV | +10.1% –9.5% | 230 | 2/21/05 Conference note Figures |
| Lepton+jets | Template (topological selection) |
170.0 ± 6.5 (stat) +10.5 –6.1 (syst) GeV | +7.3% –5.2% | 160 | 8/12/04 Conference note Figures |
| Top Pair Production Cross Section |
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| Dileptons | Topological | 8.23 +0.52 –0.51 (stat) +0.85 –0.80 (syst) +0.65 –0.57 (lumi) pb | +14% –13% | 5.3 | 3/10/10 Conference note Figures |
| Lepton+jets | Topological NN b-tagging |
7.70
+0.79 –0.70 (stat+syst+lumi)
pb 7.93 +1.04 –0.91 (stat+syst+lumi) pb (mtop=172.5 GeV) |
+13% –11% | 4.3 | 5/28/10 Conference note Figures |
| Lepton+jets, dileptons, and tau+lepton |
NN b-tagging and topological |
7.83 +0.46 –0.45 (stat) +0.64 –0.53 (syst) ± 0.48 (lumi) pb | +12% –11% | 1.0 | 7/25/08 Conference note Figures |
| Lepton+track and dileptons |
NN b-tagging and topological |
6.2
+0.9 –0.9 (stat) +0.8 –0.7 (syst) ± 0.4 (lumi)
pb (Combination of two results below) |
+20% –19% | 1.0 | 8/10/07 Conference note Figures |
| Dileptons | Topological | 6.8 +1.2 –1.1 (stat) +0.9 –0.8 (syst) ± 0.4 (lumi) pb | +23% –22% | 1.0 |
3/13/07 Conference note Figures |
| Tau+lepton | NN b-tagging | 8.3 +2.0 –1.8 (stat) +1.4 –1.2 (syst) ± 0.5 (lumi) pb | +30% –27% | 1.0 | 8/9/07 Conference note Figures |
| Lepton+jets | NN b-tagging | 8.3 +0.6 –0.5 (stat) +0.9 –1.0 (syst) ± 0.5 (lumi) pb | +14% –15% | 910 |
3/10/07 Conference note Figures |
| Topological | 6.3 +0.9 –0.8 (stat) ± 0.7 (syst) ± 0.4 (lumi) pb | +19% –18% |
10/30/06 Conference note Figures |
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| Tau+jets | Lifetime tagging | 5.1 ±1.3 (stat) ± 1.4 (syst) ± 0.4 (lumi) pb | +86% –70% | 0.35 | 9/13/06 Conference note Figures |
| Alljets | Lifetime tagging | 12.1 ± 4.9 (stat) ± 4.6 (syst) pb | +56% –56% | 360 |
3/18/06 Conference note Figures |
| Lepton+track & electron+muon |
Lifetime tagging & topological |
8.6 +1.9 –1.7 (stat) ± 1.1 (syst) ± 0.6 (lumi) pb | +26% –25% | 370 |
3/6/06 Conference note Figures |
| Dileptons | Topological | 8.6 +2.3 –2.0 (stat) +1.2 –1.0 (syst) ± 0.6 (lumi) pb | +31% –27% | 370 | 7/1/05 Conference note Figures |
| Lepton+jets & dileptons |
Topological | 7.1 ± 1.2 (stat) +1.4 –1.1(syst) ± 0.5 (lumi) pb | +27% –24% | 230 | 4/01/05 Conference note (PLB results combined) |
| Lepton+jets | Lifetime tagging | CSIP: 7.2
+1.3 –1.2 (stat) +1.9 –1.4 (syst) ± 0.5 (lumi)
pb SVT: 8.2 +1.3 –1.3 (stat) +1.9 –1.6 (syst) ± 0.5 (lumi) pb |
+33% –27% +29% –26% |
160 | 8/10/04 Conference note Figures |
| Electron+muon | Lifetime tagging | 11.1 +5.8 –4.3 (stat) ± 1.4 (syst) ± 0.7 (lumi) pb | +54% –41% | 160 | 8/3/04 Conference note Figures |
| Alljets | Lifetime tagging | 7.7 +3.4 –3.3 (stat) +4.7 –3.8 (syst) ± 0.5 (lumi) pb | +75% –65% | 160 | 4/8/04 Conference note Figures |
| Dileptons | Topological | 14.3 +5.1 –4.3 (stat) +2.6 –1.9 (syst) ± 0.9 (lumi) pb | +41% –33% | 140 | 3/26/04 Conference note Figures |
| Other Top Quark Properties |
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| Lepton+jets | Forward-backward charge asymmetry in tt production |
(8 ± 4 (stat) ± 1 (syst) )% | 4.3 | 7/26/10 Conference note Figures |
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| Dileptons | Spin correlations | Correlation strength = –0.17 +0.65 –0.53 (stat + syst) | 4.2 | 7/13/09 Conference note Figures |
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| Lepton+jets | tt resonances from leptophobic Z′ bosons |
MZ′ < 820 GeV excluded at 95% CL for ΓZ′ = 1.2% MZ′ |
3.6 | 3/16/09 Conference note Figures |
|
| Lepton+jets and dileptons |
W boson helicity | f0 = 0.490
±0.106 (stat) ±0.085 (syst) f+ = 0.110 ±0.059 (stat) ±0.052 (syst)s |
2.7 | 7/25/08 Conference note Figures | |
| Lepton+jets | SM Higgs produced with tt with H0→bb |
σ(ttH) < 64 × SM value for MHiggs> = 115 GeV |
2.1 | 7/28/08 Conference note Figures |
|
| Lepton+jets, dileptons, and tau+lepton |
Decay to charged Higgs boson |
B(t→H+b) < 0.20 (95% CL)
(leptophobic H+) B(t→H+b) < 0.12 to 0.20 (95% CL) (tauonic H+) |
1.0 | 7/25/08 Conference note Figures |
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| Lepton+jets | Search for tt resonances from leptophobic Z' bosons |
MZ' < 760 GeV excluded at 95% CL for ΓZ' = 1.2% MZ' |
2.1 | 3/7/08 Conference note Figures |
|
| Lepton+jets and dileptons |
Cross section ratio | σ(pp→tt)l+jets/σ(pp→tt)ll = 1.21 +0.27 −0.26 (stat + syst) | 1.0 | 8/9/07 Conference note Figures |
|
| Decay to charged Higgs boson |
B(t→H+b) < 0.35 (95% CL) | ||||
| Lepton+jets and dileptons |
Top quark mass from cross section measurements |
166.9
+5.9 –5.2 (stat+syst) +3.7 –3.8 (theory)
GeV (lepton+jets, Kidonakis and Vogt) 166.1 +6.1 –5.3 (stat+syst) +4.9 –6.7 (theory) GeV (lepton+jets, Cacciari et al.) 174.5 +10.5 –8.2 (stat+syst) +3.7 –3.6 (theory) GeV (dileptons, Kidonakis and Vogt) 174.1 +9.8 –8.4 (stat+syst) +4.2 –6.0 (theory) GeV (dileptons, Cacciari et al.) |
1.0 | 8/15/07 Conference note Figures |
|
| Lepton+jets | Search for tt resonances from leptophobic Z' bosons |
MZ' < 680 GeV excluded at 95% CL for ΓZ' = 1.2% MZ' |
910 | 7/20/07 Conference note Figures |
|
| Lepton+jets | tt resonances from leptophobic Z' bosons |
MZ' < 680 GeV excluded at 95% CL for ΓZ' = 1.2% MZ' |
370 | 7/20/05 Conference note Figures |
|
| Dileptons and lepton+jets |
Right-handed W's (topological selection) |
f+ = 0.04
± 0.11 (stat) ± 0.06 (syst) f+ < 0.25 @ 95% CL |
Varies | 7/5/05 Conference note Figures |
|
| Dileptons | Right-handed W's (topological selection) |
f+ = 0.13 ± 0.20 (stat) ± 0.06 (syst) | 370 | 7/5/05 Conference note Figures |
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| Lepton+jets | Measurement of R = B(t–>Wb)/B(t–>Wq) |
CSIP: R = 0.65
+0.34 –0.30 (stat) +0.17 –0.12 (syst) SVT: R = 0.70 +0.27 –0.24 (stat) +0.11 –0.10 (syst) |
160 | 8/26/04 Conference note Figures |
|
| Lepton+jets | Right-handed W's (topological selection) |
f+ < 0.244 at 90% CL | 160 | 8/6/04 Conference note Figures |
|
| Lepton+jets | Right-handed W's (lifetime tagging) |
f+ < 0.244 at 90% CL | 160 | 7/5/04 Conference note Figures |
|
| Search for Single Top Quark Production (Limits at 95% confidence level) |
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| Lepton+jets | Combination of DT, ME, and BNN |
sigma(tb+X,tqb+X) = 4.8
± 1.3
pb (3.5 std. dev. significance) | ± 27% | 910 |
3/10/07 Conference note Figures |
| Lepton+jets | W' search | 200 GeV < M(W') < 650 GeV excluded at 95% CL |
230 | 3/9/06 Conference note Figures Analysis details |
|
| Lepton+jets | Likelihood | s-channel: sigma(tb) < 5.0 pb t-channel: sigma(tqb) < 4.4 pb |
370 | 7/20/05 Conference note Figures Analysis details |
|
| Lepton+jets | Decision trees | s-channel: sigma(tb) < 8.3 pb t-channel: sigma(tqb) < 8.1 pb |
230 | 3/4/05 Conference note Figures |
|
| Lepton+jets | Cuts | s-channel: sigma(tb) < 19 pb t-channel: sigma(tqb) < 25 pb s+t channels: sigma(tqb) < 23 pb |
160 | 8/13/04 Conference note Figures Analysis details |
|