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arXiv · 1804.01787

Low-energy limit of the $O(4)$ quark-meson model from the functional renormalization group approach

Jürgen Eser·Florian Divotgey·Mario Mitter·Dirk H. Rischke
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Abstract

We compute the low-energy limit of the $O(4)$-symmetric quark-meson model as an effective field theory for Quantum Chromodynamics within the Functional Renormalization Group (FRG) approach. In particular, we analyze the renormalization group flow of momentum-dependent pion self-interactions beyond the local potential approximation. The numerical results for these couplings obtained from the FRG are confronted with a recent tree-level study. Additionally, their effect on the wave-function renormalization and the curvature masses is investigated.

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Jürgen Eser, Florian Divotgey, Mario Mitter, Dirk H. Rischke. 2018-04-05. Low-energy limit of the $O(4)$ quark-meson model from the functional renormalization group approach. https://doi.org/10.1103/physrevd.98.014024

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