Status of the lattice and τ decay determinations of αs
- Received Date: 2010-02-08
- Accepted Date: 1900-01-01
- Available Online: 2010-09-05
Abstract:
The two highest precision determinations of αs(MZ2), that based on the analysis of short-distance-sensitive lattice observables, and that based on an analysis of hadronic τ 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.