May 30, 2007 · Abstract: The infrared behaviour of Landau gauge QCD vertex functions is investigated employing a skeleton expansion of the Dyson-Schwinger ...

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It is analytically demonstrated that a linear rising potential between heavy quarks can be generated by infrared singularities in the dressed quark-gluon vertex ...

It is analytically demonstrated that a linear rising potential between heavy quarks can be generated by infrared singularities in the dressed quark-gluon vertex ...

It is analytically demonstrated that a linear rising potential between heavy quarks can be generated by infrared singularities in the dressed quark-gluon vertex ...

May 30, 2007 · What the Infrared Behaviour of QCD Vertex Functions in Landau gauge can tell us about Confinement 3. Fig. 2. The Dyson-Schwinger equation for ...

The infrared behavior of the quark–gluon vertex of quenched Landau gauge QCD is studied by analyzing its Dyson–Schwinger equation.

Therefore, the IR singularities do not induce asymptotic quark confinement but the long-range interaction is screened by unquenching loops at scales of the ...

In Landau gauge, the gluon-ghost vertex function offers a convenient possibility to define a nonperturbative running coupling. The infrared fixed point ...

In a functional approach to QCD the infrared behaviour of Landau gauge Green functions is inves- tigated. Positivity violation for, and thus confinement of, ...