alpha_s From the Lattice and Hadronic Tau Decays
Kim Maltman
TL;DR
This paper reviews recent analyses that reconcile the previously inconsistent determinations of the strong coupling constant alpha_s(M_Z) from hadronic tau decays and lattice observables, improving agreement and understanding.
Contribution
It presents new analyses that harmonize alpha_s(M_Z) values from tau decays and lattice data, clarifying the main sources of previous discrepancies.
Findings
Reconciliation of alpha_s(M_Z) from different methods
Identification of key sources of previous discrepancies
Enhanced precision in alpha_s(M_Z) determination
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.
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