Knowledge Management System of Institute of Theoretical Physics, CAS
Yang, H; Wang, Q; Kuang, YP; Lu, Q; Yang, H , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. | |
Calculation of the chiral Lagrangian coefficients from the underlying theory of QCD: A simple approach | |
Source Publication | PHYSICAL REVIEW D |
Keyword | Pion Decay Constant Perturbation-theory Quantum Chromodynamics Symmetry Breaking Quark Energy Model Mass |
Abstract | We calculate the coefficients in the chiral Lagrangian approximately from QCD based on a previous study of deriving the chiral Lagrangian from the first principles of QCD in which the chiral Lagrangian coefficients are defined in terms of certain Green's functions in QCD. We first show that, in the large-N-c limit, the anomaly part contributions to the coefficients are exactly cancelled by certain terms in the normal part contributions, and the final results of the coefficients only concern the remaining normal part contributions depending on QCD interactions. We then do the calculation in a simple approach with the approximations of taking the large-N-c limit, the leading order in dynamical perturbation theory, and the improved ladder approximation; thereby the relevant Green's functions are expressed in terms of the quark self-energy Sigma(p(2)). By solving the Schwinger-Dyson equation for Sigma(p(2)), we obtain the approximate QCD predicted coefficients and quark condensate which are consistent with the experimental values. |
2002 | |
ISSN | 0556-2821 |
Volume | 66Issue:1Pages:- |
Subject Area | Physics |
Indexed By | SCI |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itp.ac.cn/handle/311006/13492 |
Collection | 理论物理所科研产出_SCI论文 |
Corresponding Author | Yang, H , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
Recommended Citation GB/T 7714 | Yang, H,Wang, Q,Kuang, YP,et al. Calculation of the chiral Lagrangian coefficients from the underlying theory of QCD: A simple approach[J]. PHYSICAL REVIEW D,2002,66(1):-. |
APA | Yang, H,Wang, Q,Kuang, YP,Lu, Q,&Yang, H , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2002).Calculation of the chiral Lagrangian coefficients from the underlying theory of QCD: A simple approach.PHYSICAL REVIEW D,66(1),-. |
MLA | Yang, H,et al."Calculation of the chiral Lagrangian coefficients from the underlying theory of QCD: A simple approach".PHYSICAL REVIEW D 66.1(2002):-. |
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