Удаан M^{-}+He мөргөлдөөний үед электроны корреляц тооцох асуудал

Abstract

An adiabatic electronic wave function for helium atoms depending on distance between the heavy particles (the negative meson and the target nuclear) is constructed. Both the radial and angle correlations are included in the wave function and the adiabatic electronic term for the He(1s²)+M^- system is calculated. It is shown that the adiabatic electronic term for the elastic (M^-+He(1s²) ) and ionization (M^-+He(1s)) channels cross twice at the distance R₁=0.88a₀ and R₂=0.215a₀ between heavy particles. A possible corrections to the theory for ionization of atoms by slow meson impact, due to the second crossing point (R₂), are discussed.