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Measurements of αs from event shapes and the four-jet rate

✍ Scribed by G. Dissertori

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
503 KB
Volume
117
Category
Article
ISSN
0920-5632

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✦ Synopsis

New results from measurements of the strong coupling constant αs(MZ) at LEP are presented. In particular, a new LEP combination of results based on event-shape variables has become available, where a new method for the estimation of the theoretical uncertainty has been implemented. Furthermore, two other analyses are quoted, based on power corrections and the four-jet rate.

📜 SIMILAR VOLUMES

Measurements of αs from QCD event shapes
Measurements of αs from QCD event shapes at OPAL and LEP
✍ M.T. Ford 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 372 KB

New preliminary measurements of the strong coupling a, are presented, using hadronic decays observed in the OPAL detector at LEP. Previous OPAL measurements are updated to incorporate the latest theoretical predictions. New techniques for the estimation of theoretical uncertainties are discussed. Th