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    Gluon Propagator in the Infrared Region

    Leinweber, Derek B. and Skullerud, Jon-Ivar and Williams, Anthony G. (1998) Gluon Propagator in the Infrared Region. Physical Review D. ISSN 2470-0010

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    The gluon propagator is calculated in quenched QCD for two different lattice sizes (163 × 48 and 323 × 64) at β = 6.0. The volume dependence of the propagator in Landau gauge is studied. The smaller lattice is instrumental in revealing finite volume and anisotropic lattice artefacts. Methods for minimising these artefacts are developed and applied to the larger lattice data. New structure seen in the infrared region survives these conservative cuts to the lattice data. This structure serves to rule out a number of models that have appeared in the literature. A fit to a simple analytical form capturing the momentum dependence of the nonperturbative gluon propagator is also reported.

    Item Type: Article
    Keywords: gluon; propagator; infrared region;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Faculty of Science and Engineering > Theoretical Physics
    Item ID: 15701
    Depositing User: Dr. Jonivar Skullerud
    Date Deposited: 21 Mar 2022 16:32
    Journal or Publication Title: Physical Review D
    Publisher: American Physical Society
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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