Direct Bound on the Total Decay Width of the Top Quark in pp¯ Collisions at s=1.96 TeV
- Additional Document Info
- View All
We present the first direct experimental bound on the total decay width of the top quark, Gamma(t), using 955 pb(-1) of the Tevatron's pp collisions recorded by the Collider Detector at Fermilab. We identify 253 top-antitop pair candidate events. The distribution of reconstructed top quark mass from these events is fitted to templates representing different values of the top quark width. Using a confidence interval based on likelihood-ratio ordering, we extract an upper limit at 95% C.L. of Gamma(t)<13.1 GeV for an assumed top quark mass of 175 GeV/c(2).
author list (cited authors)
Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M. G., González, B., Amerio, S., ... Zucchelli, S.