Can positron-annihilation-induced auger electron spectroscopy (PAES) be used to clarify the choice of starting point in positron surface state models

Measurements of the thermally activated desorption of positronium, Ps, have demonstrated the existence of the positron surface states on clean metal surfaces. Two possible starting points for the theoretical treatments of these surface states are: (1) to consider the positron as a single particle bound in potential well which scales like a classical image potential, V...