[en] Studied are the cluster properties, which cause the appearance of the events, asymmetrical in the center-of-mass system. Analyzed is the asymmetry of the particle divergence in π^-p collisions. Two-meter propane chamber was irradiated by π^- mesons with 40 GeV/c momentum. Analyzed were 10000 events at the number of secondary charged particles in an event nsub(+-) >= 4 and nsub(+-) = 2. All the events are divided into 5 groups depending on its sign and the Lorentz factor value (the parameter of the relative motion of the charged particle group). Cluster effective mass, charged particle multiplicity in the cluster and dispersion of distribution according to rate are considered as cluster characteristics. For the clusters of symmetrical and asymmetrical events for the scattered particles the logarithmic dependence of an average number of cluster particles on effective cluster mass was obtained. The distribution of the particles according to longitudinal rate in the central part of the cluster of definite masses is close to equilibrium, predicted by multiperipheral model