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    Quark-gluon vertex in a momentum subtraction scheme


    Skullerud, Jonivar and Ki_izılersü, Ayşe and Williams, Anthony G (2002) Quark-gluon vertex in a momentum subtraction scheme. Nuclear Physics B - Proceedings Supplements, 106-07. pp. 841-843. ISSN 09205632

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    Abstract

    We compute the quark-gluon vertex in quenched QCD, in the Landau gauge using an off-shell mean-field (a)-improved fermion action. The running coupling is calculated in an ‘asymmetric’ momentum subtraction scheme (). We obtain a crude estimate for Λ = 170 ± 65 MeV, which is considerably lower than other determinations of this quantity. However, substantial systematic errors remain.

    Item Type: Article
    Keywords: Quark-gluon; vertex; momentum; subtraction; scheme;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Faculty of Science and Engineering > Theoretical Physics
    Item ID: 15678
    Identification Number: https://doi.org/10.1016/S0920-5632(01)01861-8
    Depositing User: Dr. Jonivar Skullerud
    Date Deposited: 15 Mar 2022 16:47
    Journal or Publication Title: Nuclear Physics B - Proceedings Supplements
    Publisher: Elsevier
    Refereed: Yes
    URI:

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