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:	Publisher
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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