External momentum expansion in NJL model
文献类型：期刊论文
| 作者 | Huang M(黄梅) ; Zhao WQ(赵维勤); Huang, M; Zhuang, PF; Zhao, WQ
|
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 1999 |
| 卷号 | 23期号:9页码:926-930 |
| 关键词 | ML model large N-c expansion external momentum expansion |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China ; CCAST, Beijing 100080, Peoples R China |
| 英文摘要 | In the large N-c expansion beyond mean-field approximation, we develop a general scheme of SU(2) NJL model including current quark mass explicitly. In our scheme, the constituent quark's propagator is expanded in pion's external momentum k, and all the Feynman diagrams are naturally expanded to k(2) term in a unified way. Our numerical results show that in the mean field approximation, the effect of current quark mass is invisible, however, the effect of current quark mass can be seen explicitly beyond mean-field approximation for reasonable choices of the parameters in NJL model. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000083108500013 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238748]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Huang M,Zhao WQ,Huang, M,et al. External momentum expansion in NJL model[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,1999,23(9):926-930. |
| APA | 黄梅,赵维勤,Huang, M,Zhuang, PF,&Zhao, WQ.(1999).External momentum expansion in NJL model.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,23(9),926-930. |
| MLA | 黄梅,et al."External momentum expansion in NJL model".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 23.9(1999):926-930. |
入库方式： OAI收割
来源：高能物理研究所
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