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Bosonic stringlike behavior and the ultraviolet filtering of QCD

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dc.contributor.authorEl Bakry Mahmoud, A.
dc.contributor.authorLeinweber, D.
dc.contributor.authorWilliams, A.
dc.contributor.organisationSpecial Research Centre for the Subatomic Structure of Matter
dc.date.issued2012
dc.description.abstractThe gluonic action density is calculated in static mesons at finite temperature just below the deconfinement point. Our focus is to elucidate the role of vacuum ultraviolet fluctuations which are filtered using an improved smearing algorithm. In the intermediate source separation distance, where the free string picture poorly describes the flux tube width profile, we find upon reducing the vacuum action towards the classical instanton vacuum, the characteristics of the flux tube converge and compare favorably with the predictions of the free bosonic string. This result establishes a connection between the free string action and vacuum gauge fields and reveals the important role of ultraviolet physics in understanding the lattice data at this temperature scale. As a by-product of these calculations, we find the broadening of the QCD flux tube to be independent of the ultraviolet filtering at large distances. Our results exhibit a linearly divergent pattern in agreement with the string picture predictions.
dc.description.statementofresponsibilityAhmed S. Bakry, Derek B. Leinweber, and Anthony G. Williams
dc.identifier.citationPhysical Review D: Particles, Fields, Gravitation and Cosmology, 2012; 85(3):1-8
dc.identifier.doi10.1103/PhysRevD.85.034504
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.orcidLeinweber, D. [0000-0002-4745-6027]
dc.identifier.orcidWilliams, A. [0000-0002-1472-1592]
dc.identifier.urihttp://hdl.handle.net/2440/69660
dc.language.isoen
dc.publisherAmerican Physical Soc
dc.relation.grantARC
dc.rights©2012 American Physical Society
dc.source.urihttps://doi.org/10.1103/physrevd.85.034504
dc.subjectultraviolet filtering
dc.subjectsmearing
dc.subjectBosonic strings
dc.subjectflux tubes
dc.titleBosonic stringlike behavior and the ultraviolet filtering of QCD
dc.typeJournal article
pubs.publication-statusPublished

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