论文标题
重新访问对分解的不可分割的贡献，即$ b $ ersons for Charmonium
Revisiting nonfactorizable contributions to factorization-forbidden decays of $B$ mesons to charmonium
论文作者
论文摘要
由$ b \ rightarrow（χ_{c0}，χ_{C2}，H_C）K $的巨大速度激励，我们研究了$ babar $ and belle的合作，我们研究了这些因素化的不可分割的贡献，这些贡献可能是通过$ c $ c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ bar c \ systept的贡献。我们的数值结果表明，观众的贡献能够产生与实验一致的较大的分支比率。作为副产品，我们还研究了cabbbo抑制的衰变，例如$ b \ rightarrow（χ_{C0}，χ_{C2}，H_C）π$和与U-Spin相关的$ B_S $衰减，到目前为止，它们受到了较少的理论和实验性关注。计算出的分支比率达到$ 10^{ - 6} $的顺序，在Belle-II和LHCB实验的范围内。此外，还计算了这些衰变的$ CP $ -Asymmetry参数。将获得的结果与可用的实验数据和其他预测的数字进行了比较。我们还研究了计算中理论不确定性的来源。
Motivated by the large rates of $B\rightarrow (χ_{c0}, χ_{c2}, h_c)K$ decays observed by the $BABAR$ and Belle collaborations, we investigate the nonfactorizable contributions to these factorization-forbidden decays, which can occur through a gluon exchange between the $c\bar c$ system and the spectator quark. Our numerical results demonstrate that the spectator contributions are capable of producing a large branching ratio consistent with the experiments. As a by-product, we also study the Cabibbo-suppressed decays, such as $B\rightarrow (χ_{c0}, χ_{c2}, h_c)π$ and the U-spin-related $B_s$ decay, which have so far received less theoretical and experimental attention. The calculated branching ratios reach the order of $10^{-6}$, which in within the scope of the Belle-II and LHCb experiments. Further, the $CP$-asymmetry parameters are also calculated for these decays. The obtained results are compared with the available experimental data and numbers from other predictions. We also investigate the sources of theoretical uncertainties in our calculation.
