溫伯格角
外观
温伯格角(英語:Weinberg angle,又叫弱混合角)是温伯格-萨拉姆的弱电统一理论[1] [2][3]的一个参数。
温伯格角的由来与定义
[编辑]定义θW
由参考[2]中[2](10)及(11)式:
- ,
- .
有:
温伯格角也可定义成:[4]
温伯格角的测量值
[编辑]sin2θW = 0.2397 ± 0.0013
參考文獻
[编辑]- ^ S.L. Glashow. Partial-symmetries of weak interactions. Nuclear Physics. 1961, 22 (4): 579–588. Bibcode:1961NucPh..22..579G. doi:10.1016/0029-5582(61)90469-2.
- ^ 2.0 2.1 S. Weinberg. A Model of Leptons. Physical Review Letters. 1967, 19 (21): 1264–1266. Bibcode:1967PhRvL..19.1264W. doi:10.1103/PhysRevLett.19.1264.
- ^ A. Salam. N. Svartholm , 编. Elementary Particle Physics: Relativistic Groups and Analyticity. Eighth Nobel Symposium. Stockholm: Almquvist and Wiksell: 367. 1968.
- ^ L. B. Okun. Leptons and Quarks. North-Holland Physics Publishing. 1982: 214. ISBN 0-444-86924-7.