The influence of invisible light particles on $\hat{I}{›}_b\to \hat{I}›E_{\mathrm{miss}}$

Quan-Yi Hu, Zhi-Bin Duan

In this work, we study the contribution of invisible light particles to $\hat{I}{›}_b\to \hat{I}›E_{\mathrm{miss}}$, particularly the three-body decays $\hat{I}{›}_b\to \hat{I}›\ddot{I}•\bar{\ddot{I}}•$ and $Λ_b \to Λψ\…