论文标题

$ξ_{qq^{\ prime} q} \toς_{q^{\ prime}}}^{*} $弱衰减

Light-Cone Sum Rules Analysis of $Ξ_{QQ^{\prime}q}\toΣ_{Q^{\prime}}^{*}$ Weak Decays

论文作者

Hu, Xiao-Hui, Shi, Yu-Ji

论文摘要

在这项工作中,我们研究了Spin-1/2双重重击的半副作用弱衰变$ξ_{qQ^{\ prime}} $中的spin-3/2 spin-3/2单点baryvy baryons $σ_{q^{q^{\ prime}}}使用$σ_{q^{\ prime}}^*$的轻锥分布振幅的并行组件,通过分析和数值计算这些衰减的过渡形式。还可以预测这些半弱弱衰变的数值结果宽度和分支比率,这与文献中其他理论方法相同的预测进行了比较。这些现象学预测将来可以通过实验来测试。

In this work, we investigate the semi-leptonic weak decays of spin-1/2 doubly-heavy baryons $Ξ_{QQ^{\prime}}$ into spin-3/2 singly-heavy baryons $Σ_{Q^{\prime}}^*$ within light-cone sum rules. Using the parallel components of the light-cone distribution amplitudes of $Σ_{Q^{\prime}}^*$, the transition form factors for these decays are calculated both analytically and numerically. The numerical results for these semi-leptonic weak decays widths and branching ratios are also predicted, which are compared with the same predictions by other theoretical approaches in the literatures. These phenomenology predictions can be tested by the experiments in the future.

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