An investigation of the very rare $K^{+}\to {\pi }^{+}\nu \bar{\nu }$ decay

NA62 Collaboration

The NA62 experiment reports an investigation of the $K^{+}\to {\pi }^{+}\nu \bar{\nu }$ mode from a sample of $K^{+}$ decays collected in 2017 at the CERN SPS. The experiment has achieved a si…