Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/11070
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Type: Journal article
Title: Quark-gluon vertex in a momentum subtraction scheme
Author: Skullerud, J.
Kizilersu, A.
Williams, A.
Citation: Nuclear Physics B-Proceedings Supplements, 2002; 106:841-843
Publisher: Elsevier Science BV
Issue Date: 2002
ISSN: 0920-5632
1873-3832
Organisation: Special Research Centre for the Subatomic Structure of Matter
Statement of
Responsibility: 
Jonivar Skullerud, Ayse Kizilersü and Anthony G. Williams
Abstract: We compute the quark-gluon vertex in quenched QCD, in the Landau gauge using an off-shell mean-field O(a)-improved fermion action. The running coupling is calculated in an `asymmetric' momentum subtraction scheme (MOM~). We obtain a crude estimate for Lambda_MSbar=170+/-65 MeV, which is considerably lower than other determinations of this quantity. However, substantial systematic errors remain.
Description: Copyright © 2001 Published by Elsevier Science B.V. All rights reserved. Copyright © 2002. Submitted to Cornell University’s online archive www.arXiv.org in 2001 by Jon Ivar Skullerud. Post-print sourced from www.arxiv.org.
RMID: 0020020748
DOI: 10.1016/S0920-5632(01)01861-8
Description (link): http://www.elsevier.com/wps/find/journaldescription.cws_home/505717/description#description
Appears in Collections:Special Research Centre for the Subatomic Structure of Matter publications

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