The cross sections for the reactions ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$($K^{\pm }$,$K^{\pm \prime }$)${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$* ($J^{\pi }=2^{+}$, $E_x=4.44\mathrm{}$ MeV; $J^{\pi }=0^{+}$, $E_x=7.65\mathrm{}$ MeV, and $J^{\pi }=3^{-}$, $E_x=9.64\mathrm{}$ MeV) at incident momentum $p_{\mathrm{lab}}=800\mathrm{}$ MeV/c are calculated in the distorted wave impulse approximation. Multiple scattering effects are taken into account by means of the $K^{\pm }$-nucleus elastic scattering amplitudes. The results are compared with recent data for the reactions leading to the $2^{+}$ and $3^{-}$ states. The difference between the angular patterns of the cross sections for the $K^{-}$ and $K^{+}$ scattering is mainly due to the fact that the $K^{-}N$ scattering amplitude depends strongly on the momentum transfer compared with the $K^{+}N$ amplitude.

NUCLEAR REACTIONS ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$($K^{\pm }$,$K^{\pm \prime }$)${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$* ($2^{+}$, 4.44 MeV; $0^{+}$, 7.65 MeV; $3^{-}$, 9.64 MeV), $p_{\mathrm{lab}}=800\mathrm{}$ MeV/c, $\frac{d\sigma }{d\Omega }$ calculated in DWIA, distortion effects through $K^{\pm }$-nucleus elastic scattering amplitudes.

• Received 13 November 1981

DOI:https://doi.org/10.1103/PhysRevC.25.2695