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Lattice-QCD-based Schwinger-Dyson Approach for Chiral Symmetry Restoration at Finite Temperature | Hideaki Iida
; Makoto Oka
; Hideo Suganuma
; | Date: |
30 Sep 2003 | Subject: | hep-ph hep-lat nucl-th | Affiliation: | Tokyo Inst. Tech. | Abstract: | We propose the Schwinger-Dyson (SD) formalism based on lattice QCD, i.e., LQCD-based SD formalism, for the study of dynamical chiral-symmetry breaking in QCD. We extract the kernel function K(p^2) in the SD equation from the lattice data of the quark propagator in the Landau gauge. As remarkable features, we find infrared vanishing and intermediate enhancement of the kernel function K(p^2) in the SD equation. We apply the LQCD-based SD equation to thermal QCD, and calculate the quark mass function at the finite temperature. We find chiral symmetry restoration at the critical temperature T_c sim 100MeV. | Source: | arXiv, hep-ph/0309338 | Services: | Forum | Review | PDF | Favorites |
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