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Direct Measurement of the Top Quark Mass

Collaboration, D; Abachi, S; (1997) Direct Measurement of the Top Quark Mass. Phys.Rev.Lett. , 79 (7) 1197 - 1202. 10.1103/PhysRevLett.79.1197. Green open access

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Abstract

We measure the top quark mass m_t using t tbar pairs produced in the D0 detector by root(s) = 1.8 TeV p pbar collisions in a 125 pb^-1 exposure at the Fermilab Tevatron. We make a two constraint fit to m_t in t tbar --> b W^+ bbar W^- final states with one W decaying to q qbar and the other to e nu or mu nu. Events are binned in fit mass versus a measure of probability for events to be signal rather than background. Likelihood fits to the data yield m_t = 173.3 +- 5.6 (stat) +- 6.2 (syst) GeV/c^2.

Type: Article
Title: Direct Measurement of the Top Quark Mass
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.79.1197
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.79.1197
Language: English
Additional information: © 1997 The American Physical Society
URI: https://discovery.ucl.ac.uk/id/eprint/1374172
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