6533b7d6fe1ef96bd1267181

RESEARCH PRODUCT

Radiative kaon capture on nuclei.

subject

description

Hypernuclear formation through the radiative capture of in-flight ${\mathit{K}}^{\mathrm{\ensuremath{-}}}$ is studied in a distorted wave impluse approximation approach. The elementary operator is obtained from first-order Feynman diagrams and is constrained by the reactions ${\mathit{K}}^{\mathrm{\ensuremath{-}}}$p\ensuremath{\rightarrow}\ensuremath{\Lambda}\ensuremath{\gamma} and, via crossing, by \ensuremath{\gamma}p\ensuremath{\rightarrow}${\mathit{K}}^{+}$\ensuremath{\Lambda}. The ${\mathit{K}}^{\mathrm{\ensuremath{-}}}$ distortion has been included via a simple optical potential which is in agreement with ${\mathit{K}}^{\mathrm{\ensuremath{-}}}$ elastic scattering on nuclei. Using the reaction $^{16}\mathrm{O}$(${\mathit{K}}^{\mathrm{\ensuremath{-}}}$,\ensuremath{\gamma}${)}_{\mathrm{\ensuremath{\Lambda}}}^{16}$N we obtain cross sections up to 10 \ensuremath{\mu}b for photons emitted at forward angles.