Model-agnostic likelihood for the reinterpretation of the $B^{+}\to K^{+}\nu \bar{\nu }$ measurement at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +374

We recently measured the branching fraction of the $B^{+}\to K^{+}\nu \bar{\nu }$ decay using 362fb${}^{-1}$ of on-resonance $e^{+}{e}^{-}$ collision data under the assumption of Standard…