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Skullerud, Jonivar, 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: | 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 |
| Related URLs: | |
| URI: | https://mural.maynoothuniversity.ie/id/eprint/15678 |
| 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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