The Realistic Lattice Determination of alpha_s(M_Z) Revisited

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dc.creatorMaltman, K.
dc.creatorLeinweber, D.
dc.creatorMoran, P.
dc.creatorSternbeck, A.
dc.date2008-07-13
dc.date2008-12-15
dc.date.accessioned2026-07-07T12:22:24Z
dc.date.available2026-07-07T12:22:24Z
dc.descriptionWe revisit the earlier determination of alpha_s(M_Z) via perturbative analyses of short-distance-sensitive lattice observables, incorporating new lattice data and performing a modified version of the original analysis. We focus on two high-intrinsic-scale observables, log(W_11) and log(W_12), and one lower-intrinsic scale observable, log(W_{12}/u_0^6), finding improved consistency among the values extracted using the different observables and a final result, alpha_s(M_Z)=0.1192(11), 2 sigma higher than the earlier result, in excellent agreement with recent non-lattice determinations and, in addition, in good agreement with the results of a similar, but not identical, re-analysis by the HPQCD Collaboration. A discussion of the relation between the two re-analyses is given, focussing on the complementary aspects of the two approaches.
dc.description13 pages, 2 figures. Somewhat compressed and shortened version to appear in Phys. Rev. D. Numerical results unchanged
dc.identifierhttps://arxiv.org/abs/0807.2020
dc.identifierhttp://arxiv.org/abs/0807.2020
dc.identifierPhys.Rev.D78:114504,2008
dc.identifierdoi:10.1103/PhysRevD.78.114504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213641
dc.subjectHigh Energy Physics - Lattice
dc.titleThe Realistic Lattice Determination of alpha_s(M_Z) Revisited
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