Zero temperature string breaking in lattice quantum chromodynamics

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dc.creatorBernard, C.
dc.creatorDeGrand, T.
dc.creatorDeTar, C.
dc.creatorGottlieb, S.
dc.creatorHeller, U. M.
dc.creatorHetrick, J.
dc.creatorLacock, P.
dc.creatorOrginos, K.
dc.creatorSugar, R. L.
dc.creatorToussaint, D.
dc.date2001-03-14
dc.date2001-05-23
dc.date.accessioned2026-07-07T11:30:26Z
dc.date.available2026-07-07T11:30:26Z
dc.descriptionThe separation of a heavy quark and antiquark pair leads to the formation of a tube of flux, or "string", which should break in the presence of light quark-antiquark pairs. This expected zero-temperature phenomenon has proven elusive in simulations of lattice QCD. We study mixing between the string state and the two-meson decay channel in QCD with two flavors of dynamical sea quarks. We confirm that mixing is weak and find that it decreases at level crossing. While our study does not show direct effects of internal quark loops, our results, combined with unitarity, give clear confirmation of string breaking.
dc.description20 pages, 7 figures. With small clarifications and two additions to references. Submitted to Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-lat/0103012
dc.identifierhttp://arxiv.org/abs/hep-lat/0103012
dc.identifierPhys.Rev.D64:074509,2001
dc.identifierdoi:10.1103/PhysRevD.64.074509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197006
dc.subjectHigh Energy Physics - Lattice
dc.titleZero temperature string breaking in lattice quantum chromodynamics
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