论文标题
美元
$M_W$ helps select $Z^\prime$ models for $b \rightarrow s \ell \ell$ anomalies
论文作者
论文摘要
如参考文献所示。 \ cite {allanach：2021kzj}，第三个家庭超重（$ y_3 $）模型更改了$ m_w $的标准模型预测，而同时解释了$ b \ y b \ s \ ell \ ell \ ell $ $ twortions spontane a spontane spontane appontane spontane spontane spontane appontane spontane spontane spontane spontane spontane spontane spontane spontane spontane spontane a \ ell \ ell $ $ $ u（1）_ {y_3} $对称。 $ M_W $的2022 CDF II测量值与标准模型预测相去甚远，这在某种程度上使$ y_3 $型号略有不同。在这里，我们将仪表付费分配概括为无异常组合$ s y_3 + t（B_3-L_3）$，并显示包含2022 CDF II的测量$ M_W $ $ M_W $选择一个可行的整数域$ S $ S $ S $和$ t $。例如，$ s = 1，t = -3 $在两参数全球拟合中的$ p-$值为.12，可为277 elethoweak和更换风味的$ b $数据，从而大大提高了Sm $ p-$ p-p $ $ 5 \ times 10^{ - 6} $。
As shown in Ref. \cite{Allanach:2021kzj}, the Third Family Hypercharge ($Y_3$) Model changes the Standard Model prediction for $M_W$ whilst simultaneously explaining anomalies in $b\to s\ell\ell$ transitions via a heavy $Z^\prime$ gauge boson which is spawned by a spontaneously broken gauged $U(1)_{Y_3}$ symmetry. The 2022 CDF II measurement of $M_W$, which is far from the Standard Model prediction, somewhat disfavours the $Y_3$ model. Here, we generalise the gauge charge assignments to the anomaly-free combination $s Y_3 + t (B_3-L_3)$ and show that incorporating the 2022 CDF II measurement of $M_W$ selects a viable domain of integers $s$ and $t$. For example, $s=1, t=-3$ yields a $p-$value of .12 in a two-parameter global fit to 277 electroweak and flavour changing $b$ data, much improving a SM $p-$value of $5\times 10^{-6}$.
