What can be learned about meson nucleon interactions and nuclear structure from K(sup +) total cross sections

摘要

K(sup +) total cross sections on deuterium, (sup 6)Li, (sup 12)C, (sup 28)Si and (sup 40)Ca have been measured at four momenta in the range of 480--714 MeV/c. This study has revealed important modifications of the free-space K(sup +)-nucleon interaction when the nucleon is embedded in a nucleus. Some of the suggested modifications include unconventional nuclear medium effects such as partial quark deconfinement, mass rescaling of nuclear pionic fields or pion excess in nuclei and meson exchange currents. (ERA citation 19:005737)