Abazov, VM;
Abbott, B;
Abolins, M;
Acharya, BS;
Adams, M;
Adams, T;
Agelou, M;
... Zverev, EG; + view all
(2007)
Multivariate searches for single top quark production with the D0 detector.
PHYSICAL REVIEW D
, 75
(9)
, Article ARTN 092007. 10.1103/PhysRevD.75.092007.
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Abstract
We present a search for electroweak production of single top quarks in the s-channel (pp̅ →tb̅ +X) and t-channel (pp̅ →tqb̅ +X) modes. We have analyzed 230 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider at a center-of-mass energy of √s=1.96 TeV. No evidence for a single top quark signal is found. We set 95% confidence level upper limits on the production cross sections, based on binned likelihoods formed from a neural network output. The observed (expected) limits are 6.4 pb (4.5 pb) in the s-channel and 5.0 pb (5.8 pb) in the t-channel.
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