First results on the running coupling in QCD with two massless flavours

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dc.creatorBode, Achim
dc.creatorFrezzotti, Roberto
dc.creatorGehrmann, Bernd
dc.creatorHasenbusch, Martin
dc.creatorHeitger, Jochen
dc.creatorJansen, Karl
dc.creatorKurth, Stefan
dc.creatorRolf, Juri
dc.creatorSimma, Hubert
dc.creatorSint, Stefan
dc.creatorSommer, Rainer
dc.creatorWeisz, Peter
dc.creatorWittig, Hartmut
dc.creatorWolff, Ulli
dc.date2001-05-03
dc.date2001-05-28
dc.date.accessioned2026-07-07T10:32:29Z
dc.date.available2026-07-07T10:32:29Z
dc.descriptionWe report on the non-perturbative computation of the running coupling of two-flavour QCD in the Schr"odinger functional scheme. The corresponding Lambda-parameter, which describes the coupling strength at high energy, is related to a low energy scale which still remains to be connected to a hadronic ``experimentally'' observable quantity. We find the non-perturbative evolution of the coupling indispensable to avoid untolerable errors in the estimated Lambda-parameter.
dc.description14 pages, 5 figures, 3 tables, some changes in the data analysis after discovery and correction of an error in Nucl. Phys. B 525, 387 (1998) by C. Christou et al. (hep-lat/9801007v2, Erratum to appear)
dc.identifierhttps://arxiv.org/abs/hep-lat/0105003
dc.identifierhttp://arxiv.org/abs/hep-lat/0105003
dc.identifierPhys.Lett.B515:49-56,2001
dc.identifierdoi:10.1016/S0370-2693(01)00857-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178769
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFirst results on the running coupling in QCD with two massless flavours
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