Direct Measurement of the Top Quark Mass
High Energy Physics - Experiment
2008-11-26 v1
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.
Keywords
Cite
@article{arxiv.hep-ex/9703008,
title = {Direct Measurement of the Top Quark Mass},
author = {D0 Collaboration and S. Abachi},
journal= {arXiv preprint arXiv:hep-ex/9703008},
year = {2008}
}
Comments
11 pages with 3 encapsulated PostScript figures and 1 encapsulated PostScript table included in the body of the article