Triple-gluon and quark-gluon vertex from lattice QCD in Landau gauge

Sternbeck, André; Paul-Hermann, Balduf,; Kızılersü, Ayşe; Oliveira, Orlando; Silva, Paulo; Skullerud, Jon-Ivar; Williams, Anthony G.

doi:10.48550/arxiv.1702.00612

Cited by 5 publications

(5 citation statements)

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“…Phenomenologically, the parameters and should become constant as the quark mass increases. In the chiral limit, the interaction is enhanced because of the dressing of the quark-gluon vertex [46][47][48][49][50], which is necessary to trigger chiral symmetry breaking. The potential is properly defined by the Fourier transform of the interaction.…”

Section: Results Of the Modelmentioning

confidence: 99%

A pattern for the flavor dependent quark-antiquark interaction

Chen

Chang

2019

Chinese Phys. C

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A flavor dependent kernel is constructed based on the rainbow-ladder truncation of the Dyson-Schwinger and Bethe-Salpeter equation approach of Quantum Chromodynamics. The quarkantiquark interaction is composed of a flavor dependent infrared part and a flavor independent ultraviolet part. Our model gives a successful and unified description of the light, heavy and heavylight ground pseudoscalar and vector mesons. For the first time, our model shows that the infrared enhanced quark-antiquark interaction is stronger and wider for the lighter quark.

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Section: Results Of the Modelmentioning

confidence: 99%

A pattern for the flavor dependent quark-antiquark interaction

Chen

Chang

2019

Chinese Phys. C

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“…Left: Ghost-gluon vertex dressing function (full kinematic dependence) in comparison to SU (2) lattice data[59]. Right: Threegluon vertex dressing function at the symmetric point in comparison to lattice data[60,61]), see Refs [62,63]. for similar results.…”

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confidence: 66%

Quenched glueballs in the DSE/BSE framework

Huber

Fischer²,

Sanchis-Alelpuz³

2022

Supl. Rev. Mex. Fis.

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The spectrum of glueballs with quantum numbers JPC = 0±+, 2±+, 3±+, 4±+ is calculated in quenched quantum chromodynamics (QCD) from bound state equations. The input is taken from a parameter-free calculation of two- and three-point functions. Our results agree well with lattice results where available and contain also some additional states. For the scalar glueball, we present first results for the effects of additional diagrams which turn out to be strongly suppressed.

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“…finite number of n-point interactions), one could restrict to the 4-point level expansion, which includes the 3-point and 4-point gluon vertices, the 3-point ghost-gluon vertex and 3-point quark-gluon vertex. For each of these vertices in Landau gauge, several results are available in literature from a variety of sources, see [76][77][78][79][80][81][82] for a small and thus incomplete selection. The rigorous formalism developed in the current paper can be applied to get corresponding vertices in another gauge.…”

Section: Discussionmentioning

confidence: 99%

A Fresh Look at the (Non-)Abelian Landau--Khalatnikov--Fradkin Transformations

Meerleer¹,

Dudal²,

Sorella³

et al. 2018

Acta Phys. Pol. B Proc. Suppl.

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The Landau-Khalatnikov-Fradkin transformations (LKFTs) allow to interpolate n-point functions between different gauges. We first offer an alternative derivation of these LKFTs for the gauge and fermions field in the Abelian (QED) case when working in the class of linear covariant gauges. Our derivation is based on the introduction of a gauge invariant transversal gauge field, which allows a natural generalization to the non-Abelian (QCD) case of the LKFTs. To our knowledge, within this rigorous formalism, this is the first construction of the LKFTs beyond QED. The renormalizability of our setup is guaranteed to all orders. We also offer a direct path integral derivation in the non-Abelian case, finding full consistency.

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Triple-gluon and quark-gluon vertex from lattice QCD in Landau gauge

Cited by 5 publications

References 0 publications

A pattern for the flavor dependent quark-antiquark interaction

A pattern for the flavor dependent quark-antiquark interaction

Quenched glueballs in the DSE/BSE framework

A Fresh Look at the (Non-)Abelian Landau--Khalatnikov--Fradkin Transformations

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