论文标题
$ b^+_ c $ meson与风味异常有关
Lifetime of the $B^+_c$ meson in relation to flavour anomalies
论文作者
论文摘要
讨论了$ b_c $梅森的标准模型衰减率，并与一种新型方法一起使用实验数据与操作员产品扩展结合使用。在新的方法差异中，考虑了$ b，\，d $和$ b_c $梅森衰减率的差异，而自由夸克的贡献却掉出来，从而减少了理论预测。
The Standard Model decay rate of the $B_c$ meson is discussed together with a novel approach that uses experimental data in combination with an operator product expansion. In the new method differences of $B,\,D$ and $B_c$ meson decay rates are considered for which the free-quark contributions drop out, leading to a reduction of the theory prediction.
