论文标题
$ k \ toπν\barν$和$ΔF= 2 $ transitions toveal非宇宙矢量leptoquark烙印
Flavor Non-universal Vector Leptoquark Imprints in $K\to πν\bar ν$ and $ΔF = 2$ Transitions
论文作者
论文摘要
我们根据风味非宇宙4321量规组，分析了$ k \ tev规模的leptoquark在$ b $ b $ -meson Anomalies上，分析$ k \ tev尺度的leptoquark，以第三代Quark-Lepton统一为基础。我们表明，加上$ΔF= 2 $振幅所施加的紧密界限，$ \ nathcal {b}（k^+ \toπ^+ t \barν）$的当前测量已经提供了对模型参数空间的非平常约束。在模型的最低版本中，预计$ \ Mathcal {b}中的标准模型（K^+ \至π^+ c^+ v+ vbarν）$的偏差预计与Lepton Floational Batios $ r_d $ r_d $和$ R_ r_ r_ r_ {d^*} $的非标准效应密切相关。借助未来数据，这些相关性可以为模型提供决定性的测试。
We analyze $K\to πν\bar ν$ rates in a model with a TeV-scale leptoquark addressing $B$-meson anomalies, based on the flavor non-universal 4321 gauge group featuring third-generation quark-lepton unification. We show that, together with the tight bounds imposed by $ΔF = 2$ amplitudes, the present measurement of $\mathcal{B}(K^+ \to π^+ ν\barν)$ already provides a non-trivial constraint on the model parameter space. In the minimal version of the model, the deviations from the Standard Model in $\mathcal{B}(K^+ \to π^+ ν\barν)$ are predicted to be in close correlation with non-standard effects in the Lepton Flavor Universality ratios $R_D$ and $R_{D^*}$. With the help of future data, these correlations can provide a decisive test of the model.
