Abstract
A microscopical many-body calculation of the K +-nucleus optical-potential is carried out for kaon kinetic energies up to 500 MeV. In addition to the the impulse-approximation contribution, we have considered the contribution to the K +-nucleus scattering from the interaction of the kaon with the virtual pion cloud. Previous approximations for the pionic cloud contribution, specially on the imaginary part, are shown to be inadequate. We also find new interaction mechanisms which provide appreciable corrections to the K +-nucleus optical-potential. The inclusion of these new mechanisms in the inelastic part of the optical potential produces a significant improvement in the differential and total K + nuclear cross sections. Uncertainties in the real part of the optical potential are also discussed.
Former address: Physics Department, University of Southampton, SO17-1BJ, U.K .
This work was sponsored by DGICYT (Spain) research Project No. PB92-0927 and CICYT (Spain) research project AEN93-1205.
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Nieves, J., García-Recio, C., Oset, E. (1995). Meson Exchange Contribution to K +-Nucleus Scattering. In: Adam, J., Dobeš, J., Mach, R., Sotona, M., Dolejší, J. (eds) Mesons and Light Nuclei ’95. Few-Body Systems, vol 9. Springer, Vienna. https://doi.org/10.1007/978-3-7091-9453-9_4
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DOI: https://doi.org/10.1007/978-3-7091-9453-9_4
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