Neutral pion number fluctuations at high multiplicity in pp-interactions at 50 GeV

Neutral pionnumber N0 distributions for each total number of particles in event Ntot=Nch+N0 are obtained. The scaled variance of neutral pionfluctuations, omega=D/ , is measured. The fluctuations increase at Ntot >22. According to quantum statistics modelsit may indicate for the approaching to pioncondensate conditions for high pionmultiplicity in the system.