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arXiv · hep-th/0002038

Non-ladder Extended Renormalization Group Analysis of the Dynamical Chiral Symmetry Breaking

Ken-Ichi Aoki·Kaoru Takagi·Haruhiko Terao·Masashi Tomoyose
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Abstract

The order parameters of dynamical chiral symmetry breaking in QCD, the dynamical mass of quarks and the chiral condensates, are evaluated by numerically solving the Non-Perturbative Renormalization Group (NPRG) equations. We employ an approximation scheme beyond ``the ladder'', that is, beyond the (improved) ladder Schwinger-Dyson equations. The chiral condensates are enhanced compared with the ladder ones, which is phenomenologically favorable. The gauge dependence of the order parameters is fairly reduced in this scheme.

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Ken-Ichi Aoki, Kaoru Takagi, Haruhiko Terao, Masashi Tomoyose. 2000-02-19. Non-ladder Extended Renormalization Group Analysis of the Dynamical Chiral Symmetry Breaking. https://doi.org/10.1143/ptp.103.815

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