论文标题
夸克混合的界限，$ m_ {z^{\ prime}} $和$ z-z^{\ prime} $在3-3-1模型中的风味变化中性过程中混合角度
Bounds on quark mixing, $M_{Z^{\prime}}$ and $Z-Z^{\prime}$ mixing angle from flavor changing neutral processes in a 3-3-1 model
论文作者
论文摘要
梅森和反媒体混合过程构成了模型的重要来源，这些模型为违反风味的中性过程贡献了树级的贡献。在electroweak $ \ text {su}（3）_ \ text {l} \ times \ text {u}（1）_n $模型，其中取消异常要求一个夸克家族的变化与其他夸克家族的变化不同，涉及风味中性的中性潮流贡献的流程介导了水平的介导的水平贡献了衡量的水平和量表的贡献。在这里，我们首先研究中性标量的贡献，这些标量模拟标准希格斯对$ k^0- \ bar k^0 $，$ b^0- \ bar b^0 $，以及$ d^0- \ bar d^0 $混合过程，并在实验中面对我们的预测。结果将确定夸克混合矩阵$ v^{u，d} _l $。在拥有此信息的过程中，我们接下来评估了中性量规玻色子$ z^{\ prime} $和$ z $对$ k^0- \ bar k^0 $，$ b^0- \ bar b^0 $的贡献，以及$ d^0- \ d^0- \ bar d^0 $ processes。这种现实的介子过渡方法将在$ m_ {z^{\ prime}} $和$ z-z^{\ prime} $混合角度提供严重的界限。
Meson and anti-meson mixing processes constitute an important source of constraints on models that give tree level contributions to flavor violating neutral processes. In electroweak $ \text{SU}(3)_\text{L} \times \text{U}(1)_N $ models, where anomaly cancellation requires that one family of quarks transforms differently from the other ones, processes involving flavor changing neutral currents gain tree level contributions mediated by gauge and scalar fields. Here, we firstly investigate the contributions of the neutral scalar that mimics the standard Higgs to the $K^0-\bar K^0$, $B^0-\bar B^0$, and $D^0-\bar D^0$ mixing processes and confront our predictions with experiments. The results will determine the quark mixing matrices $V^{u,d}_L$. In possession of this information we, next, evaluate the contributions of the neutral gauge bosons $Z^{\prime}$ and $Z$ to the $K^0-\bar K^0$, $B^0-\bar B^0$, and $D^0-\bar D^0$ processes. This realistic approach to meson transitions will provide severe bounds on $M_{ Z^{\prime}}$ and $Z-Z^{\prime}$ mixing angle.
