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arXiv 1609.03444hep-ph
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SU(3)_C \otimes PDKEEPAAA(2)_L \otimes SU(3)_R \otimes U(1)_X规范模型的唯象

Phenomenology of the SU(3)_C \otimes SU(2)_L \otimes SU(3)_R \otimes U(1)_X gauge model

P. V. Dong, D. T. Huong, D. V. Loi, N. T. Nhuan, N. T. K. Ngan

摘要:

研究了基于SU(3)_C \otimes SU(2)_L \otimes SU(3)_R \otimes U(1)_X规范群的左右非对称模型,改进了已知左右对称模型的理论和唯象.这种新的规范对称性导致费米子生成数为3,并且在规范和标量扇区中都出现了树级变味中性流。它还可以自动提供中微子质量和暗物质的观测值。进一步,我们研究了规范场和标量场的质量谱。导出了费米子和标量的所有规范相互作用。本文研究了新的中性矢量Z '_R和新的中性标量H_2对味道违反的中性介子混合的树级贡献,如\bar{K},B_d- \bar{B}_d和B_s- \bar{B}_s,它们强烈地限制了新的物理标度和右手夸克混合矩阵的元素。新物理标度的界与ρ参数以及W、Z玻色子与新规范玻色子的混合参数的界是一致的。

英文摘要:

We study the left-right asymmetric model based on SU(3)_C \otimes SU(2)_L \otimes SU(3)_R \otimes U(1)_X gauge group, which improves the theoretical and phenomenological aspects of the known left-right symmetric model. This new gauge symmetry yields that the fermion generation number is three, and the tree-level flavor-changing neutral currents arise in both gauge and scalar sectors. Also, it can provide the observed neutrino masses as well as dark matter automatically. Further, we investigate the mass spectrum of the gauge and scalar fields. All the gauge interactions of the fermions and scalars are derived. We examine the tree-level contributions of the new neutral vector, Z'_R, and new neutral scalar, H_2, to flavor-violating neutral meson mixings, say K-\bar{K}, B_d-\bar{B}_d, and B_s-\bar{B}_s, which strongly constrain the new physics scale as well as the elements of the right-handed quark mixing matrices. The bounds for the new physics scale are in agreement with those coming from the ρ-parameter as well as the mixing parameters between W, Z bosons and new gauge bosons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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