A dressed quark-gluon vertex computed in the symmetric approximation yields light-meson masses that match experiment more closely than rainbow-ladder results.
Algorithmic derivation of Dyson-Schwinger Equations
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abstract
We present an algorithm for the derivation of Dyson-Schwinger equations of general theories that is suitable for an implementation within a symbolic programming language. Moreover, we introduce the Mathematica package DoDSE which provides such an implementation. It derives the Dyson-Schwinger equations graphically once the interactions of the theory are specified. A few examples for the application of both the algorithm and the DoDSE package are provided. The package can be obtained from physik.uni-graz.at/~mah/DoDSE.html.
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FunKit is a computer algebra toolkit that automates derivation of functional equations such as Dyson-Schwinger and functional RG from arbitrary master equations, with tracing via FORM and export to numerical code.
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Light mesons in the symmetric-vertex approximation
A dressed quark-gluon vertex computed in the symmetric approximation yields light-meson masses that match experiment more closely than rainbow-ladder results.
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FunKit: A computer algebra toolkit for functional approaches
FunKit is a computer algebra toolkit that automates derivation of functional equations such as Dyson-Schwinger and functional RG from arbitrary master equations, with tracing via FORM and export to numerical code.