Interactions of Negative K Mesons

摘要: A detailed analysis of events in nuclear emulsions caused by ${K}^{\ensuremath{-}}$ mesons is given. Of 39 observed, 8 produced stars flight, 1 underwent scattering, and 30 were captured at rest. The mean free path for inelastic collisions emulsion 17\ifmmode\pm\else\textpm\fi{}5 cm, most geometric. Charged hyperons hyperfragments seen 12 stars; all others, emission a neutral hyperon allowed energy balance. In $\frac{2}{5}$ the stars, charged pion was emitted; half pions had kinetic \ensuremath{\geqslant} 100 Mev. 3 consisted only $\ensuremath{\Sigma}$ pion, such momenta as to make it obvious that capture proceeded according to: ${K}^{\ensuremath{-}}+N\ensuremath{\rightarrow}Y+\ensuremath{\pi}$. Kinematic shows this reaction likely process almost other captures. 5 captures rest, energies Mev, compatible with $Y={\ensuremath{\Lambda}}^{0}$. One (and possibly few more) was: ${K}^{\ensuremath{-}}+2N\ensuremath{\rightarrow}Y+N$. one capture, either ${\ensuremath{\Sigma}}^{\ifmmode\pm\else\textpm\fi{}}$ decaying an unusual mode, into electron, or else hitherto unknown particle.