Bibliographic Details
| Title: |
Functional renormalization flow and dynamical chiral symmetry breaking of QCD. |
| Authors: |
Ming-Fan Li1 11006139@zju.edu.cn, Mingxing Luo1 uo@zimp.zju.edu.cn |
| Source: |
Physical Review D: Particles, Fields, Gravitation & Cosmology. Apr2012, Vol. 85 Issue 8, p1-8. 8p. |
| Subject Terms: |
*QUANTUM chromodynamics, *RENORMALIZATION group, *SYMMETRY breaking, *CHIRALITY of nuclear particles, *ATOMIC mass, *PARAMETER estimation |
| Abstract: |
The dependence of functional renormalization group equation on regulators is investigated. A parameter is introduced to control the suppression of regulators. Functional renormalization group equations will become regulator-independent if this newly introduced parameter is sent to infinity in the end of calculation. One-loop renormalization flow equations of QCD are derived. The novelty is that both the coupling running equation and the mass running equation are mass-dependent. Different flow patterns are explored. A mechanism for nonoccurrence of dynamical chiral symmetry breaking is arrived at. The existence of a conformai window is also discussed in the language of renormalization flow. [ABSTRACT FROM AUTHOR] |
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