  Bose-Einstein correlations in proton-proton collisions is an effective tool
to study the space structure of the production amplitude. Usually rather simple
parametrization of particle-emission distribution function has been used -
exponential or gaussian form. However if one consider a particle source as an
expanding media the symmetric Levy distribution as the generalization
exponential can be used.Then additional parameter - the index of stability -
will appear. All parameters dependencies on the charged particle density and on
the mean transverse momentum of the pion/hadron in the correlated pair are
investigated.
