Search for single top quark production at D0 in Run II
I present a comprehensive search for electroweak production of single top quarks in Run II at the Fermilab Tevatron at {radical}s =1.96TeV. Using 230 pb{sup -1} of data collected with the D0 experiment, searches for s-channel and t-channel single top quark production have been carried out in the electron+jets and muon+jets decay channels using secondary-vertex b-quark tagging to select signal-like events. A binned likelihood has been constructed from the outputs of neural networks in order to maximize the sensitivity to single top quark production. No evidence for a single top quark signal is found. However, the 95% confidence level upper limits on the production cross section of 6.4 pb in the s-channel and 5.0 pb in the t-channel are improvements over previous limits by a factor of two and are approaching the cross section region predicted by the standard model.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 907796
- Report Number(s):
- FERMILAB-FN-0795-E
- Country of Publication:
- United States
- Language:
- English
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