Calculation of the chiral Lagrangian coefficients from the underlying theory of QCD: A simple approach
文献类型：期刊论文
| 作者 | Yang, H; Wang, Q; Kuang, YP; Lu, Q; Yang, H , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2002 |
| 卷号 | 66期号:1页码:- |
| 关键词 | Pion Decay Constant Perturbation-theory Quantum Chromodynamics Symmetry Breaking Quark Energy Model Mass |
| ISSN号 | 0556-2821 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000177338600041 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13492]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Yang, H , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 推荐引用方式 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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