Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2005-12-27
Phys.Rev.Lett.96:152002,2006
Physics
High Energy Physics
High Energy Physics - Experiment
7 pages, 2 figures, To be published in Phys. Rev. Lett. Replacement includes minor revisions made prior to acceptance by journ
Scientific paper
10.1103/PhysRevLett.96.152002
We report a measurement of the top quark mass using events collected by the CDF II Detector from ppbar collisions at \sqrt{s} = 1.96 TeV at the Fermilab Tevatron. We calculate a likelihood function for the top mass in events that are consistent with ttbar->bbar l^- \nubar b l^+ \nu decays. The likelihood is formed as the convolution of the leading-order matrix element and detector resolution functions. The joint likelihood is the product of likelihoods for each of 33 events collected in 340 pb^{-1} of integrated luminosity, yielding a top quark mass M_t = 165.2 +- 6.1 (stat.) +- 3.4(syst.) GeV/c^2. This first application of a matrix-element technique to ttbar->bbar l^- \nubar b l^+ \nu decays gives the most precise single measurement of M_t in dilepton events. Combined with other CDF Run II measurements using dilepton events, we measure M_{t} = 167.9 +- 5.2 (stat.) +- 3.7 (syst.) GeV/c^2.
No associations
LandOfFree
Top Quark Mass Measurement from Dilepton Events at CDF II does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Top Quark Mass Measurement from Dilepton Events at CDF II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Top Quark Mass Measurement from Dilepton Events at CDF II will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-290860