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Skullerud, Jonivar, Bowman, Patrick O, Kizilersü, Ayse, Leinweber, Derek B and Williams, Anthony G (2003) Nonperturbative structure of the quark-gluon vertex. Journal of High Energy Physics, 2003 (04). 047-047. ISSN 1029-8479
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Abstract
The complete tensor structure of the quark–gluon vertex in Landau gauge is
determined at two kinematical points (‘asymmetric’ and ‘symmetric’) from lattice QCD in
the quenched approximation. The simulations are carried out at β = 6.0, using a mean-field improved Sheikholeslami–Wohlert fermion action, with two quark masses ∼ 60 and
115 MeV. We find substantial deviations from the abelian form at the asymmetric point.
The mass dependence is found to be negligible. At the symmetric point, the form factor
related to the chromomagnetic moment is determined and found to contribute significantly
to the infrared interaction strength.
| Item Type: | Article |
|---|---|
| Keywords: | QCD; nonperturbative effects; lattice QCD; |
| Academic Unit: | Faculty of Science and Engineering > Research Institutes > Hamilton Institute Faculty of Science and Engineering > Theoretical Physics |
| Item ID: | 15677 |
| Identification Number: | 10.1088/1126-6708/2003/04/047 |
| Depositing User: | Dr. Jonivar Skullerud |
| Date Deposited: | 15 Mar 2022 16:42 |
| Journal or Publication Title: | Journal of High Energy Physics |
| Publisher: | springer |
| Refereed: | Yes |
| Related URLs: | |
| URI: | https://mural.maynoothuniversity.ie/id/eprint/15677 |
| 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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