Void probability in the FRITIOF model.

The void probability in the QCD-inspired FRITIOF model is studied for both unrestricted and restricted phase space. Comparison to phenomenological clan model is presented. The observed enhancement of void probability can be accommodated with the clan model when the randomly produced clans decay with the geometric distribution instead of the logarithmic one. A simple parameterization is introduced to reproduce the shift of weighting factor with the size of restricted phase space. The predictions to the multiplicity distributions of pp collision at $$\sqrt s = 10$$ TeV is presented. [ABSTRACT FROM AUTHOR]