To the theory of interaction of positronium atoms and slow positrons with the surface of simple metals

The processes of reflection (elastic and inelastic) of Ps slow atoms from the surface of simple metals, processes of dislocation, as well as the inverse process of Ps atom formation at interaction with the metal surface of slow positrons are considered. Numerical calculations are carried out in the Born approximation. Inaplicability of the known formulae of the positive ion neutralization theory to the processes considered is shown