A search for feebly-interacting particles in $B$ decays with missing energy at Belle
M. Abumusabh, I. Adachi, :, H. Ahmed et autres
We present a search for an invisible hidden-sector particle $ X_{\rm{inv}}$, produced in $B^0 \to \bar{D}^0 X_{\rm{inv}}$ and $B^\pm\to h X_{\rm{inv}}$ decays, where $h = π^\pm$, $K^\pm$, $D_{s}^\pm$, $p^\pm$. The search is performed using $e^+ e^-$ collision data recorded with the Belle …
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arXiv (Cornell University)