Single Top Quark Measurements at the Tevatron

TL;DR

This paper presents recent measurements of single top quark production at the Tevatron, using advanced multivariate techniques to distinguish signal from background and extracting the CKM matrix element |V_{tb}|.

Contribution

It provides the latest experimental results on single top quark production channels and methods for measuring |V_{tb}| at the Tevatron.

Findings

Measurement of single top production cross sections in various channels

Extraction of |V_{tb}| from observed cross sections

Use of multivariate techniques to improve signal-background separation

Abstract

This paper reports the most recent measurements of single top quark production performed by CDF and D0 collaborations in proton-antiproton collisions at Tevatron. Events are selected in the lepton+jets final state by CDF and D0 and in the missing transverse energy plus jets final state by CDF. The small single top signal in s-channel, t-channel and inclusive s+t channel is separated from the large background by using different multivariate techniques. We also present the most recent results on extraction of the CKM matrix element $|V_{tb}|$ from the single top quark cross section.