First Observation of Electroweak Single Top Quark Production
High Energy Physics - Experiment
2010-05-12 v3
Abstract
We report the first observation of single top quark production using 3.2 fb^-1 of pbar p collision data with sqrt{s}=1.96 TeV collected by the Collider Detector at Fermilab. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity for standard model production and decay is in excess of 5.9 standard deviations. Assuming m_t=175 GeV/c^2, we measure a cross section of 2.3 +0.6 -0.5 (stat+syst) pb, extract the CKM matrix element value |V_{tb}|=0.91 +-0.11 (stat+syst) 0.07(theory), and set the limit |V_{tb}|>0.71 at the 95% C.L.
Cite
@article{arxiv.0903.0885,
title = {First Observation of Electroweak Single Top Quark Production},
author = {The CDF collaboration and T. Aaltonen},
journal= {arXiv preprint arXiv:0903.0885},
year = {2010}
}
Comments
submitted to Phys. Rev. Lett