43 citations · 53 across the 4 of their papers we have counts for
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How to determine the branch points of correlation functions in Euclidean space
Andreas Windisch, Markus Q. Huber, Reinhard Alkofer
Two-point correlators represented by either perturbative or non-perturbative integral equations in Euclidean space are considered. In general, it is difficult to determine the anal…
On the Analytic Structure of Scalar Glueball Operators
Andreas Windisch, Markus Q. Huber, Reinhard Alkofer
The correlator of the square of the Yang-Mills field-strength tensor corresponds to a scalar glueball, i.e., to a bound-state formed by gluonic ingredients only. It has quantum num…
On the analytic structure of scalar glueball operators at Born level
Andreas Windisch, Markus Q. Huber, Reinhard Alkofer
We study the analytic structure of the two-point function of the operator F2 which is expected to describe a scalar glueball. The calculation of the involved integrals is complicat…
Towards a self-consistent solution of the Landau gauge quark-gluon vertex Dyson-Schwinger equation
Andreas Windisch, Markus Hopfer, Reinhard Alkofer
The quark-gluon vertex in Landau gauge QCD is investigated in the Dyson-Schwinger approach. The aim is to obtain a fully self-consistent solution of the quark propagator and the qu…