Combination of CDF and D0 Results on the Mass of the Top Quark

Details Combination of CDF and D0 Results on the Mass of the Top Quark Combination of CDF and D0 Results on the Mass of the Top Quark

2006-03-20

arxiv.org/abs/hep-ex/0603039v1

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 1 figure; includes latest Run-II results using 750 pb-1; super-ceded by hep-ex/0608032

Scientific paper

We summarize the top-quark mass measurements from the CDF and D0 experiments at Fermilab. We combine published Run-I (1992- 1996) measurements with the most recent preliminary Run-II (2001- present) measurements using up to 750/pb of data. Taking correlated uncertainties properly into account the resulting preliminary world average mass of the top quark is Mt=172.5 +/- 1.3(stat) +/- 1.9(syst) GeV/c2, which corresponds to a total uncertainty of 2.3 GeV/c2. The top-quark mass is now known with a precision of 1.3% - a 20% improvement relative to the previous combination.

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