Non-perturbative tests of Heavy Quark Effective Theory

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dc.creatorHeitger, Jochen
dc.creatorJuttner, Andreas
dc.creatorSommer, Rainer
dc.creatorWennekers, Jan
dc.date2004-07-20
dc.date2005-01-03
dc.date.accessioned2026-07-07T10:49:10Z
dc.date.available2026-07-07T10:49:10Z
dc.descriptionWe consider QCD with one massless quark and one heavy quark in a finite volume of linear extent L_0 ~ 0.2 fm. In this situation, HQET represents an expansion in terms of 1/z=1/(m L_0), which we test by a non-perturbative computation of quenched current matrix elements and energies, taking the continuum limit of lattice results. These are seen to approach the corresponding renormalization group invariant matrix elements of the static effective theory as the quark mass becomes large. We are able to obtain estimates of the size of the 1/m-corrections to the static theory, which are also of practical relevance in our recent strategy to implement HQET non-perturbatively by matching to QCD in a finite volume.
dc.description28 pages including figures and tables, latex2e, uses JHEP3.cls; version published in JHEP, small additions and typos corrected, results unchanged
dc.identifierhttps://arxiv.org/abs/hep-ph/0407227
dc.identifierhttp://arxiv.org/abs/hep-ph/0407227
dc.identifierJHEP0411:048,2004
dc.identifierdoi:10.1088/1126-6708/2004/11/048
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184130
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.titleNon-perturbative tests of Heavy Quark Effective Theory
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