Abstract
We report a measurement of the top-quark mass using events collected by the CDF II detector from collisions at at the Fermilab Tevatron. We calculate a likelihood function for the top-quark mass in events that are consistent with 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 of integrated luminosity, yielding a top-quark mass . This first application of a matrix-element technique to decays gives the most precise single measurement of in dilepton events. Combined with other CDF run II measurements using dilepton events, we measure .
- Received 27 December 2005
DOI:https://doi.org/10.1103/PhysRevLett.96.152002
©2006 American Physical Society