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EP Seminar
Evidence for single top quark production and first direct measurement of | Vtb |
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Europe/Zurich
500/1-001 - Main Auditorium (CERN)
Description
The top quark was first observed in 1995 at the Fermilab Tevatron collider. Top quarks have until now only been produced in particle-antiparticle pairs via the strong interaction. A second mechanism for top quark production is expected via the electroweak interaction.
Despite having a predicted cross section nearly half as large as that for top quark pairs, single top quark production has proved to be far harder to isolate from background than expected. I will show how the DZero collaboration recently found evidence for the production of single top quarks, and present the first direct measurement of the CKM matrix element | Vtb | that describes the Wtb coupling.
Organiser(s): Rolf Landua / DSU
Despite having a predicted cross section nearly half as large as that for top quark pairs, single top quark production has proved to be far harder to isolate from background than expected. I will show how the DZero collaboration recently found evidence for the production of single top quarks, and present the first direct measurement of the CKM matrix element | Vtb | that describes the Wtb coupling.
Organiser(s): Rolf Landua / DSU