Status of the Lattice and Tau Decay Determinations of alpha_s

Details Status of the Lattice and Tau Decay Determinations of alpha_s Status of the Lattice and Tau Decay Determinations of alpha_s

2010-11-28

arxiv.org/abs/1011.6096v1

Chin.Phys.C34:3150,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Prepared for the Proceedings of the 5th International Conference on Quarks and Nuclear Physics, Beijing, China, Sept. 21-26, 2

Scientific paper

The two highest precision determinations of alpha_s(M_Z^2), that based on the analysis of short-distance-sensitive lattice observables, and that based on an analysis of hadronic tau decay data, have, until very recently, given results which are not in good agreement. I review new versions of these analyses which bring the two determinations into excellent agreement, and discuss prospects for additional future improvements.

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