Studies on the correlation between π-mesons in π--p-interaction with generation of particle of high transverse momenta

The results of additional studies on the production of secondary particles having large transverse momentum (main secondary particles) in π--p-interactions at 40 GeV/c are presented. Correlations between secondary particles are investigated in two channels: (1) π-p→πsub(psub(T)>0.8+-)+...; (2) π-p→πsub(psub(T)>0.8+-)+πsub(psub(T)>0.8+-)+..., where πsub(psub(T)>0.8+-) are π-mesons having transverse momentum larger than 0.8 GeV/c. For the first type events (1) the rapidity distribution and the average rapidity of the particles accompanying the main particle are obtained. The rapidity distribution depends on the transverse momentum of the accompanying particles. The asimuthal asymmetry increases with increasing of this momentum. The average rapidity is independent of the asimuthal angle, but very strongly depends on the rapidity of the main particle - it decreases with the increase of rapidity. It is also shown, that the average difference between the averaae rapidities of the main particle and the accompanying particles are influenced by the combination of their charges. The average difference is minimum for identical charges and very strongly increases for the opposite charges. The obtained rapidity distribution is studied for events, in which two π+--mesons of large momentum psub(T)>0.8 GeV/c are produced (type 2). The rapidity distribution of each of the π+--mesons is broader than the center of mass rapidity distribution. This fact could be an indication of a presence of correlations in the production of two π+--mesons. The distribution of the absolute difference between the rapidity of the π+--mesons is given as well and its peak is at zero difference. These results indicate, that the possibility is highest for production of two π+--mesons of almost equal transverse momentum. The obtained charge particle multiplicity distribution shows that the average multiplicity is lower than the corresponding values for all inelastic π--p-interactions. These results may be interpreted as close-range correlations between the mesons