  Investigation of momentum space correlations of particles produced in high
energy reactions requires taking final state interactions into account, a
crucial point of any such analysis. Coulomb interaction between charged
particles is the most important such effect. In small systems like those
created in e+e- or p+p collisions, the so-called Gamow factor (valid for a
point-like particle source) gives an acceptable description of the Coulomb
interaction. However, in larger systems such as central or mid-central heavy
ion collisions, more involved approaches are needed. In this paper we
investigate the Coulomb final state interaction for Levy-type source functions
that were recently shown to be of much interest for a refined description of
the space-time picture of particle production in heavy-ion collisions.
