Nonladder extended renormalization group analysis of the dynamical chiral symmetry breaking
Feb, 2000
18 pages
Published in:
- Prog.Theor.Phys. 103 (2000) 815-832
e-Print:
- hep-th/0002038 [hep-th]
DOI:
Report number:
- KANAZAWA-00-01,
- KANAZAWA-2000-01
View in:
Citations per year
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.- quantum chromodynamics
- symmetry breaking: chiral
- dynamical symmetry breaking
- quark: condensation
- effective potential
- renormalization group: nonperturbative
- mass generation
- dependence: gauge
- perturbation theory: higher-order
- ladder approximation
References(55)
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