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

Autor: Eser, Jürgen, Divotgey, Florian, Mitter, Mario, Rischke, Dirk H.
Rok vydání: 2018
Předmět:
Zdroj: Phys. Rev. D 98, 014024 (2018)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevD.98.014024
Popis: 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.
Databáze: arXiv