Measurements of $α_s$ from event shapes and the four-jet rate

Details Measurements of $α_s$ from event shapes and the four-jet rate Measurements of $α_s$ from event shapes and the four-jet rate

2002-09-25

arxiv.org/abs/hep-ex/0209070v1

Physics

High Energy Physics

High Energy Physics - Experiment

Talk presented at the 31st International Conference on High Energy Physics, Amsterdam, 24-31 July 2002

Scientific paper

10.1016/S0920-5632(03)90567-6

New results from measurements of the strong coupling constant $\alpha_s(M_Z)$ 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.

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