Search for anomalous $\boldmath{Wtb}$ couplings in single top quark production

Details Search for anomalous $\boldmath{Wtb}$ couplings in single top quark production Search for anomalous $\boldmath{Wtb}$ couplings in single top quark production

2008-07-10

arxiv.org/abs/0807.1692v1

Phys.Rev.Lett.101:221801,2008

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.221801

In 0.9 fb$^{-1}$ of $p \bar p$ collisions, D0 has observed an excess of events with an isolated lepton, missing transve rse momentum, and two to four jets. This excess is consistent with single top quark production. We examine these data to study the Lorentz structure of the $Wtb$ coupling. The standard model predicts a left-handed vector coupling at the $Wt b$ vertex. The most general lowest dimension, CP-conserving Lagrangian admits right-handed vector and left- or right-h anded tensor couplings as well. We find that the data prefer the left-handed vector coupling and set upper limits on the anomalous couplings. These are the first direct constraints on a general $Wtb$ interaction and the first direct limits on left- and right-handed tensor couplings.

Affiliated with

Also associated with

No associations

Rating

Search for anomalous $\boldmath{Wtb}$ couplings in single top quark production does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Search for anomalous $\boldmath{Wtb}$ couplings in single top quark production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for anomalous $\boldmath{Wtb}$ couplings in single top quark production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-460012