Measurement of the branching ratio of the $K^+\to\pi^+\nu\bar{\nu}$ decay
Samuel Alibocus, B. Bloch-Devaux, Eduardo Cortina Gil, N. Lurkin et autres
The NA62 experiment has measured the branching ratio of the rare decay $K^+\to\pi^+\nu\bar{\nu}$ using data collected in 2023 and 2024 at the CERN SPS, obtaining $\mathcal{B}_{\rm 2023-2024}(K^+\to\pi^+\nu\bar{\nu}) = \left(7.2^{+2.3}_{-2.1}\right)\times10^{-11}$. With results from data collected between 2016 and 2022, the analysis gives $\mathcal{B}_{\rm …
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International Linear Collider