Measurement of the Top Quark Mass Using Dilepton Events

Publisher Website

9 March 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 80 (10) , 2063-2068
https://doi.org/10.1103/physrevlett.80.2063

Abstract

The D0 Collaboration has performed a measurement of the top quark mass

m_{t}

based on six candidate events for the process

t \bar{t} \to {bW}^{+} \bar{b} W^{-}

, where the

W

bosons decay to

e ν

or

μ ν

. This sample was collected during an exposure of the D0 detector to an integrated luminosity of

125 {pb}^{- 1}

of

\sqrt{s} = 1.8 TeV p \bar{p}

collisions. We obtain

m_{t} = 168.4 \pm 12.3 (stat) \pm 3.6 (syst) GeV {/ c}^{2}

, consistent with the measurement obtained using single-lepton events. Combination of the single-lepton and dilepton results yields

m_{t} = 172.0 \pm 7.5 GeV {/ c}^{2}

.

Keywords

All Related Versions

Version 1, 1997-06-15, ArXiv

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