Probing the ground state in gauge theories

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dc.creatorHeinzl, T.
dc.creatorIlderton, A.
dc.creatorLangfeld, K.
dc.creatorLavelle, M.
dc.creatorLutz, W.
dc.creatorMcMullan, D.
dc.date2007-09-21
dc.date2008-03-16
dc.date.accessioned2026-07-07T11:19:30Z
dc.date.available2026-07-07T11:19:30Z
dc.descriptionWe consider two very different models of the flux tube linking two heavy quarks: a string linking the matter fields and a Coulombic description of two separately gauge invariant charges. We compare how close they are to the unknown true ground state in compact U(1) and the SU(2) Higgs model. Simulations in compact U(1) show that the string description is better in the confined phase but the Coulombic description is best in the deconfined phase; the last result is shown to agree with analytical calculations. Surprisingly in the non-abelian theory the Coulombic description is better in both the Higgs and confined phases. This indicates a significant difference in the width of the flux tubes in the two theories.
dc.description13 pages, 10 .eps figures. V2: conclusions extended
dc.identifierhttps://arxiv.org/abs/0709.3486
dc.identifierhttp://arxiv.org/abs/0709.3486
dc.identifierPhys.Rev.D77:054501,2008
dc.identifierdoi:10.1103/PhysRevD.77.054501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193703
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleProbing the ground state in gauge theories
dc.typetext

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