Dissemin is shutting down on January 1st, 2025

Links

Tools

Export citation

Search in Google Scholar

Precision measurement of the top-quark mass from dilepton events at CDF II

Journal article published in 2007 by N. van Remoprtel, A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, Mg G. Albrow, D. Ambrose, S. Amerio, D. Amidei, Yc C. Yang, A. Anastassov, K. Anikeev, Albrow Mg, A. Annovi, J. Antos and other authors.
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Question mark in circle
Preprint: policy unknown
Question mark in circle
Postprint: policy unknown
Question mark in circle
Published version: policy unknown

Abstract

We report a measurement of the top quark mass, M_t, in the dilepton decay channel of $t\bar{t}\to b\ell'^{+}ν_{\ell'}\bar{b}\ell^{-}\bar{\nu}_{\ell}$ using an integrated luminosity of 1.0 fb^{-1} of p\bar{p} collisions collected with the CDF II detector. We apply a method that convolutes a leading-order matrix element with detector resolution functions to form event-by-event likelihoods; we have enhanced the leading-order description to describe the effects of initial-state radiation. The joint likelihood is the product of the likelihoods from 78 candidate events in this sample, which yields a measurement of M_{t} = 164.5 ± 3.9(\textrm{stat.}) ± 3.9(\textrm{syst.}) \mathrm{GeV}/c^2, the most precise measurement of M_t in the dilepton channel. ; Comment: 7 pages, 2 figures, version includes changes made prior to publication by journal