Search for electroweak single-top-quark production inpp¯collisions ats=1.96TeV

We report on a search for standard model $t$-channel and $s$-channel single-top quark production in $p\overline{p}$ collisions at a center of mass energy of 1.96 TeV. We use a data sample corresponding to $162\mathrm{p}{\mathrm{b}}^{-1}$ recorded by the upgraded collider detector at Fermilab. We find no significant evidence for electroweak top quark production and set upper limits at the 95% confidence level on the production cross section, consistent with the standard model: 10.1 pb for the $t$-channel, 13.6 pb for the $s$-channel and 17.8 pb for the combined cross section of $t$- and $s$-channel.