alpha_s From the Lattice and Hadronic Tau Decays
arXiv:0906.5005 · doi:10.1063/1.3293845
Abstract
Until recently, determinations of alpha_s(M_Z) from hadronic tau decays and the analysis of short-distance-sensitive lattice observables yielded results which, though precise, were not in good agreement. I review new analyses that bring these into good agreement and provide some details on the source of the main changes in the tau decay analysis.
4 pages, prepared for the proceedings of CIPANP 09, San Diego, USA, March 26-31, 2009