MOMENTUM CHARACTERISTICS OF THE BACKWARD EMITTED SHOWER PARTICLES IN THE INTERACTIONS OF 4.5 A GEV C C-12 AND SI-28 WITH EMULSION/

An analysis of momentum characteristics of the backward emitted shower particles has been performed using interactions of 4.5 A GeV/c C-12 a nd Si-28 With emulsion. These data have been compared with the corresp onding ones in the forward hemisphere. The average values of momentum and transverse momentum in the backward and forward hemisphere are (P- b) = 182 +/- 11, (P-b) = 68 +/- 4, (P-f) = 720 +/- 10 and (P-l(f)) = 2 80 +/- 20, respectively. The transverse momentum distributions have be en compared with Hagedorn's distribution and the corresponding tempera tures have been deduced to be T-b = 27.2 +/- 1.6 and T-f = 112.0 +/- 5 .6. The momentum distribution of shower particles emitted in the backw ard hemisphere has an exponential form with slope parameter T-0 = 46 M eV/c.