Cross sections for K⁻−p interactions

Summary

Nine K⁻+p elastic scattering events and eight K⁻ + p → → ɛ^±+π^∓ avents have been observed in nuclear emulsion. These events yield Σ(_k ⁻+ p→ k⁻+ p) = 33 ⁺¹²₋₉ mb and Σ(_k ⁻+ p → ɛ⁺⁻ + π⁻⁺)= 29 ⁺¹²₋₉ mb averaged over the energy region 0/82 MeV. The data indicate that Σ(_k ⁻ + p → ɛ⁺⁻ + π⁻⁺)rises as the K⁻ energy decreases.

Riassunto

In emulsione nucleare si sono osservati 9 scattering elastici K⁻+P e 8 K⁻+p → → ɛ + π⁻⁺. Questi eventi danno, mediando sull’intervallo energetico 0/82 MeV, (_k ⁻+ p→ k⁻+ p) = 33 ⁺¹³₋₉ mb e Σ(_k ⁻+ p → ɛ⁺⁻ + π⁻⁺)= 29 ⁺¹²₋₉ mb. I risultati indicano che Σ(_k ⁻ + p → ɛ⁺⁻ + π⁻⁺)cresce mentre l’energia del K⁻ decresce.