论文标题
调查$λ_b\toλ_c（2625）$和$ξ_b\toξ_c（2815）$的过渡形式因素（2625）$以及在Baryon Spectroscopy的支持下相应的弱衰变
Investigating the transition form factors of $Λ_b\toΛ_c(2625)$ and $Ξ_b\toΞ_c(2815)$ and the corresponding weak decays with support from baryon spectroscopy
论文作者
论文摘要
我们计算$λ_b\toλ_c（2625）$和$ξ_b\toξ_C（2815）$过渡的形式，并评估相应的半衰减衰减以及颜色允许的两体非骨质衰减。为了获得相关的形式因素，我们在BARYON光谱法的支持下使用三体光夸克模型。在这项工作中，作为重要的物理输入，相关重子的空间波函数是通过高斯膨胀方法获得的，具有半循环性潜在模型。对于半衰减的过程，电子和MUON通道的分支比率可以达到$ 1 \％$的数量级，其中我们的结果$ \ MATHCAL {B}（λ_b^0 \toλ_c^+（2625）μ^ - μ^-ν_μ）=（1.641 \ pm0.113 is Consents Consents constance constance）至于非律师过程，衰减至$π^ - $，$ρ^ - $，$ d_s^{（*） - } $最终状态具有相当大的宽度。这些讨论的衰变模式可以在LHCB实验中访问。
We calculate the form factors of the $Λ_b\toΛ_c(2625)$ and $Ξ_b\toΞ_c(2815)$ transitions, and additionally evaluate the corresponding semileptonic decays and the color-allowed two-body nonleptonic decays. In order to obtain the concerned form factors, we use the three-body light-front quark model with the support from baryon spectroscopy. In this work, as important physical inputs, the spatial wave functions of concerned baryons are obtained by the Gaussian expansion method with a semirelativistic potential model. For the semileptonic processes, the branching ratios of the electron and muon channels can reach up to the order of magnitude of $1\%$, where our result $\mathcal{B}(Λ_b^0\toΛ_c^+(2625)μ^-ν_μ)=(1.641\pm0.113)\%$ is consistent with the current experimental data. As for the nonleptonic processes, the decays to $π^-$, $ρ^-$, and $D_s^{(*)-}$ final states have considerable widths. These discussed decay modes could be accessible at the LHCb experiment.
