Dynamical symmetry breaking for Weinberg-Salam model and restoration at finite temperature
文献类型：期刊论文
| 作者 | Wang, DF; An, Y; Song, HS; An, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA. |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 1996 |
| 卷号 | 26期号:1页码:103-110 |
| 关键词 | Jona-lasinio Model Nambu |
| ISSN号 | 0253-6102 |
| 英文摘要 | In this paper, we utilize Nambu-Jona-Lasinio (NJL) mechanism to discuss the dynamical symmetry breaking for Weinberg-Salam model. In the NJL mechanism the symmetry breaking not only is determined by the potential of scalar field V(phi) but also has important relation with condensate of the fermion pair [<(psi)over bar>psi]. We find that the coefficient of quadric term of scalar field mu(2) greater than or equal to 0 can still cause symmetry breaking by Virtue of (<(psi)over bar>psi) not equal 0, and the vacuum expected value of scalar field obeys (phi) = (<(psi)over bar>psi), i.e., the order parameter which causes phase transition is the condensate of fermion pair (<(psi)over bar>psi). We also discuss the restoration problem of SU(2) x U(1) gauge symmetry breaking by the NJL mechanism at high temperatures. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12605]  |
| 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 | An, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Wang, DF,An, Y,Song, HS,et al. Dynamical symmetry breaking for Weinberg-Salam model and restoration at finite temperature[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1996,26(1):103-110. |
| APA | Wang, DF,An, Y,Song, HS,&An, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1996).Dynamical symmetry breaking for Weinberg-Salam model and restoration at finite temperature.COMMUNICATIONS IN THEORETICAL PHYSICS,26(1),103-110. |
| MLA | Wang, DF,et al."Dynamical symmetry breaking for Weinberg-Salam model and restoration at finite temperature".COMMUNICATIONS IN THEORETICAL PHYSICS 26.1(1996):103-110. |
入库方式： OAI收割
来源：理论物理研究所
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