Measurement of the Top quark mass in the lepton+jets channel

using template methods

Jahred Adelman, Erik Brubaker, Young-Kee Kim, Mel Shochet, Un-Ki Yang (U. Chicago)
Julian Budagov, Guram Chlachidze (Dubna)
George Velev (Fermilab)
Giorgio Bellettini (INFN)
Luc Demortier (Rockefeller)
Jean-Francois Arguin, Pekka Sinervo, Si Xie (U. Toronto)
Shinhong Kim, Taka Maruyama, Koji Sato, Tomonobu Tomura (U. Tsukuba)

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Analysis and Results

2D Top Mass and Jet Energy Scale Fit

Top Mass Measurement with in-situ Determination of the Jet Energy Scale using W --> 2 jets)
Secondary Vertex b-tagging

CDF Default Measurement:
M_top = 173.5 +2.7/-2.6 (stat) +/- 2.5 (jet energy) +/- 1.5 (syst) GeV/c²
= 173.5 +4.1/-4.0 GeV/c²

Figures, Tables, Descriptions

Top Mass with 1D Template method using Secondary Vertex b-tagging

Cross Check:
M_top = 173.2 +2.9/-2.8 (stat) +/- 3.4 (syst) GeV/c²
= 173.2 +4.5/4.4 GeV/c²

Figures, Tables, Descriptions

Top Mass with 1D Template method using Secondary Vertex and Jet Probability b-tagging

Cross Check:
M_top = 173.0 +2.9/-2.8 (stat) +/- 3.3 (syst) GeV/c²
= 173.0 +4.4/4.3 GeV/c²

Figures, Tables, Descriptions
[conference (public) note]

Run I World Average

M_top = 178.0 +/- 4.3 GeV/c²