D0 Top Group Public Results

Channel
Description
(Link to webpage)

Measurement
Integrated Luminosity
(pb-1)

Date Approved
Top Pair Production Cross Section
Summary of approved results (.eps) (last updated 07/18/2005)
lepton+jets Topological sigma(tt) = 6.7 +1.4 -1.3 (stat) +1.6 -1.1 (syst) +/- 0.4 (lumi) pb 230 FINAL
4/25/2005
Submitted to PLB
lepton+jets
Lifetime tagging
sigma(tt) = 8.6 +1.6 -1.5 (stat+syst) +/- 0.6 (lumi) pb
230 FINAL
4/28/2005

Submitted to PLB
lepton+jets Lifetime tagging
sigma(tt) = 8.1 +1.3 -1.2 (stat+syst) +/- 0.5 (lumi) pb

370 UPDATED
7/19/2005
Conference Note
dilepton Topological sigma(tt) = 8.6 +3.2 -2.7 (stat) +/- 1.1 (syst) +/- 0.6 (lumi) pb 230 FINAL
5/26/2005

Submitted to PLB
dilepton Topological sigma(tt) = 8.6 +2.3 -2.0 (stat) +1.2 -1.0 (syst) +/- 0.6 (lumi) pb 370 UPDATED
7/1/2005
Conference Note
emu
Lifetime tagging
sigma(tt) = 11.1 +5.8 -4.3 (stat) +/- 1.4 (syst) +/- 0.7 (lumi) pb
158
8/3/2004
Conference Note
alljets
Lifetime Tagging
sigma(tt) =  7.7 +3.4 -3.3 (stat) +4.7 -3.8 (syst) +/- 0.5 (lumi) pb
162
7/19/2004
Conference Note
Top Quark Mass
Summary of approved results (.eps) (last updated 07/20/2005)
lepton+jets Matrix Element Method
(w/ in-situ JES calibration)
 m(top) = 169.5 +/- 4.4 (stat+JES) +1.7 -1.6 (syst) GeV
320
NEW
7/19/2005
Conference Note
lepton+jets Template Method
topological analysis : m(top) = 169.9 +/- 5.8 (stat) +7.8 -7.1 (syst) GeV
b-tagged analysis: m(top) = 170.6 +/- 4.2 (stat) +/- 6.0 (syst) GeV

230 3/1/2005
Conference Note
dilepton
Matrix Weighting Method
m(top) = 155 +14 -13 (stat) +/- 7 (syst) GeV
230
2/21/2005
Conference Note
lepton+jets Template Method
Ideogram Method
Template: m(top) = 170.0 +/- 6.5 (stat) +10.5 -6.1 (syst) GeV
Ideogram:
m(top) = 177.5 +/- 5.8 (stat) +/- 7.1 (syst) GeV
160 8/12/2004
Conference Note
W Helicity
lepton+jets cos(theta*)
Combined lifetime tagging
and topological analyses
F+ = 0.00 +/- 0.13 (stat) +/- 0.07 (syst)
F+ <0.25 @ 95% CL
230 FINAL
5/13/2005
PRD 72, 011104(R)
dileptons Lepton pT
Topological analysis

F+ = 0.13 +/- 0.20 (stat) +/- 0.06 (syst)
Combination with lepton+jets (230 pb-1):
F+ = 0.04 +/- 0.11 (stat) +/- 0.06 (syst);
F+ <0.25 @ 95% CL

370
NEW
7/5/2005
Conference Note
Other Top Quark Properties
lepton+jets
Simultaneous measurement of
R=BR(t->Wb)/BR(t->Wq) and
sigma(tt)
 R = 1.03 +0.19 -0.17 (stat+syst)
sigma(tt) = 7.9 +1.7 -1.5 (stat+syst) +/- 0.5 (lumi) pb
230 UPDATED
6/15/2005
Conference Note
lepton+jets Search for ttbar resonances
Leptophobic Z' boson with MZ'<680 GeV
and GammaZ'=1.2%MZ' encluded at 95% CL
370 NEW
7/20/2005
Conference Note
Search for Single Top Quark Production
lepton+jets

Cuts-based analysis


Decision tree analysis


s-channel: sigma(tb) < 10.6 pb @ 95% CL
t-channel: sigma(tqb) < 11.3 pb @ 95% CL

s-channel: sigma(tb) < 8.3 pb @ 95% CL
t-channel: sigma(tqb) < 8.1 pb @ 95% CL

230

3/4/2005
Conference Note
lepton+jets NN analysis
s-channel: sigma(tb) < 6.4 pb @ 95% CL

t-channel: sigma(tqb) < 5.0 pb @ 95% CL

230 FINAL
5/19/2005
PLB 622 (2005) 265-276
lepton+jets Likelihood analysis
s-channel: sigma(tb) < 5.0 pb @ 95% CL

t-channel: sigma(tqb) < 4.4 pb @ 95% CL

WORLD BEST LIMITS!!!

370 NEW
7/20/2005
Conference Note

Page maintained by: Chris Tully and Aurelio Juste
Last updated: 07/20/05