Key points are not available for this paper at this time.
The D0 Collaboration has performed a measurement of the top quark mass mₓ based on six candidate events for the process ttbW^+bW^-, where the W bosons decay to e or. This sample was collected during an exposure of the D0 detector to an integrated luminosity of 125pb^-1 of s0ex{0ex}=0ex{0ex}1. 80ex{0ex}TeVpp collisions. We obtain mₓ0ex{0ex}=0ex{0ex}168. 412. 3 (stat) 3. 6 (syst) 0ex{0ex}GeV/c^2, consistent with the measurement obtained using single-lepton events. Combination of the single-lepton and dilepton results yields mₓ0ex{0ex}=0ex{0ex}172. 07. 5GeV/c^2.
Abbott et al. (Mon,) studied this question.