Determination of mean 'temperature'of system of charged pi-mesons, emitted in pi-12C interactions at Ppi-=40 GeV/c for different intervals of their transverse momenta

O. B. ABDINOV,G. N. AGAKISHIEV,M. K. SULEIMANOV,A. M. BAGIROV,YA. G. GUSEINALIEV,Y. A. PANEBRATSEV