Measurement of the top quark mass in the dilepton channel
D0 Collaboration: V. Abazov et al
TL;DR
This paper reports a measurement of the top quark mass in the dilepton decay channel using data from the D0 experiment, employing two methods that produce consistent results, leading to a combined mass estimate.
Contribution
It introduces two methods for measuring the top quark mass in the dilepton channel and combines their results for improved accuracy.
Findings
Measured top quark mass: 178.1 GeV
Statistical uncertainty: 6.7 GeV
Systematic uncertainty: 4.8 GeV
Abstract
We present a measurement of the top quark mass in the dilepton channel based on approximately 370/pb of data collected by the D0 experiment during Run II of the Fermilab Tevatron collider. We employ two different methods to extract the top quark mass. We show that both methods yield consistent results using ensemble tests of events generated with the D0 Monte Carlo simulation. We combine the results from the two methods to obtain a top quark mass m_t = 178.1 +/- 8.2 GeV. The statistical uncertainty is 6.7 GeV and the systematic uncertainty is 4.8 GeV.
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