Measurement of the $t\overline{t}$ Production Cross Section in $p\overline{p}$ Collisions at $\sqrt{s}=1.96\mathrm{TeV}$ Using Missing $E_T+\mathrm{\text{jets}}$ Events with Secondary Vertex $b$ Tagging

We present a measurement of the $t\overline{t}$ production cross section in $p\overline{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$ which uses events with an inclusive signature of significant missing transverse energy and jets. This is the first measurement which makes no explicit lepton identification requirements, so that sensitivity to $W\to \tau \nu$ decays is maintained. Heavy flavor jets from top quark decay are identified with a secondary vertex tagging algorithm. From $311{\mathrm{pb}}^{-1}$ of data collected by the Collider Detector at Fermilab, we measure a production cross section of $5.8\pm 1.2(\mathrm{stat}{)}_{-0.7}^{+0.9}(\mathrm{syst})\mathrm{pb}$ for a top quark mass of $178\mathrm{GeV}/c^2$, in agreement with previous determinations and standard model predictions.