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arXiv 0708.1977hep-ph
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电弱相互作用的真极小左右对称模型

Truly Minimal Left-Right Symmetry Model for Electroweak Interaction

Asan Damanik, Mirza Satriawan, Arief Hermanto, Pramudita Anggraita

摘要:

利用两个主要的二重态和一个由二重态相互作用产生的诱导双重态Higgs场,我们评估了基于$SU(2)_{L}\otimes SU(2)_{R}\otimes U(1)$规范群的左右对称模型对规范玻色子质量、轻子质量和电弱相互作用结构的预言能力.我们发现右电荷电流对电弱相互作用的贡献仅为0.0073%左右。中微子质量自然出现,不引入外来粒子。得到了玻色子扇区的混合角$θ= 45^{0}$,中微子扇区的混合角$θ\approx 45^{0}$,电子扇区的混合角$θ= 0^{0}$.在我们的模型中,宇称破缺可能与玻色子和轻子的质量混合有关。PAC:12.60.Cn; 12.60.Fr

英文摘要:

By using two primary doublets and one induced bidoublet Higgs fields as a result of the interactions of the two doublets, we evaluate the predictive power of the left-right symmetry model based on $SU(2)_{L}\otimes SU(2)_{R}\otimes U(1)$ gauge group to the gauge bosons masses, leptons masses, and the structure of electroweak interactions. We found that the contribution of the right charge-current to the electroweak interaction is only around 0.0073 percent. The neutrino mass emerges naturally without introducing exotic particles. We obtain that the mixing angle $θ= 45^{0}$ for boson sector, $θ\approx 45^{0}$ for neutrino sector, and $θ= 0^{0}$ for electron sector. The parity violation in our model could be associated with the mass mixing in the bosons and leptons masses arise from the induced bidoublet Higgs via symmetry breaking. PACs: 12.60.Cn; 12.60.Fr

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