Search for the rare decay $K^{+}\to {\mu }^{+}\nu \bar{\nu }\nu$

A. V. Artamonov, B. Bassalleck, B. Bhuyan +57

Evidence of the $K^{+}\to {\mu }^{+}\nu \bar{\nu }\nu$ decay was searched for using E949 experimental data with an exposure of $1.70\times 10^{12}$ stopped kaons. The data sample is dominated by the b…