论文标题
$ b $带有未颗粒的异常
$B$ anomalies with unparticles
论文作者
论文摘要
我们分析了与$ b \ to d^{（*）}τν$衰减相关的$ b $异常。分支比（D^{（*）}）$的分支比率的分数和与极化相关的其他参数通过最小化$χ^2 $来拟合到实验数据中。最佳拟合值是$ r（d）_ {\ rm best} = 0.371 $和$ r（d^*）_ {\ rm best} = 0.266 $，它们仍然大于标准模型预测。我们发现我们的结果安全地渲染了分支比率$ {\ rm br}（b_c \toτν）$以下$ 10 \％$。
We analyze the $B$ anomalies associated with the $B\to D^{(*)}τν$ decays in the unparticle model. The fraction of the branching ratios $R(D^{(*)})$ and other parameters related to the polarization are fitted to the experimental data by minimizing $χ^2$. The best-fit values are $R(D)_{\rm best}=0.371$ and $R(D^*)_{\rm best}=0.266$ which are still larger than the standard model predictions. We find that our results safely render the branching ratio ${\rm Br}(B_c\toτν)$ below $10\%$.
