论文标题
$ b \ rightarrowsμ^+μ^ - $异常的新物理场景之间的独特歧视
A unique discrimination between new physics scenarios in $b\rightarrow sμ^+μ^-$ anomalies
论文作者
论文摘要
与$ b \ to s \ ell^+ \ ell^ - $过渡相关的许多可观察到的物品显示出与其标准模型预测的偏差。与当前$ b \ rightarrow s \ ell^+\ ell^ - $数据的全局拟合提出了几种新的物理解决方案。一次仅考虑一个操作员，仅在MUON行业中考虑一个新物理学，已经表明，新物理学方案（i）$ c_9^{\ rm np} <0 $，（ii）$ c_ {9}}^{\ rm np} {\ rm np} = -c_ {10}^10}^{\ rm np np np np np np np} $ np} = -c_9^{\ prime \ rm np} $可以对所有数据进行解释。在这项工作中，我们开发了一个程序来唯一识别正确的新物理解决方案。情景II预测$ \ Mathcal {B}的值明显较低（B_S \至μ^+μ^ - ）$，如果实验不确定性降低了三个因素，则可以与其他两个方案区分开。另一方面，对CP平均角度观察值的精确度量$ s_9 $ in High $ q^2 $ bin的$ b \ of $ b \ to k^*μ^+μ^ - $衰减可以在其他两个方案之间唯一区分。我们根据方位角不对称提出了新方法，以用必要的精度测量$ S_9 $。
A number of observables related to the $b \to s \ell^+ \ell^-$ transition show deviations from their standard model predictions. A global fit to the current $b\rightarrow s\ell^+\ell^-$ data suggests several new physics solutions. Considering only one operator at a time and new physics only in the muon sector, it has been shown that the new physics scenarios (I) $C_9^{\rm NP}<0$, (II) $C_{9}^{\rm NP} = -C_{10}^{\rm NP}$, (III) $C_9^{\rm NP} = -C_9^{\prime \rm NP}$ can account for all data. In this work, we develop a procedure to uniquely identify the correct new physics solution. The scenario II predicts a significantly lower value of $\mathcal{B}(B_s\to μ^+μ^-)$ and can be distinguished from the other two scenarios if the experimental uncertainty comes down by a factor of three. On the other hand, a precise measurement of the CP averaged angular observables $S_9$ in high $q^2$ bin of $B\to K^*μ^+μ^-$ decay can uniquely discriminate between the other two scenarios. We propose new methods, in terms of azimuthal angle asymmetries, to measure $S_9$ with the necessary precision.
