DEPENDENCE OF THE SPECTRA AND CROSS-SECTIONS FOR THE YIELD OF PROTONSWITH ENERGY ABOVE 0.4 GEV AT FIXED ANGLES ON THE ATOMIC WEIGHTS OF THE COLLIDING NUCLEI IN NUCLEUS-NUCLEUS INTERACTIONS
Gn. Agakishiev et al., DEPENDENCE OF THE SPECTRA AND CROSS-SECTIONS FOR THE YIELD OF PROTONSWITH ENERGY ABOVE 0.4 GEV AT FIXED ANGLES ON THE ATOMIC WEIGHTS OF THE COLLIDING NUCLEI IN NUCLEUS-NUCLEUS INTERACTIONS, Physics of atomic nuclei, 56(10), 1993, pp. 1397-1405
The invariant cross sections of the proton yield are presented as a fu
nction of the kinetic energy (T > 0.4 GeV) at fixed angles from 0 to 9
0-degrees for (p,d,alpha,C) + C and (d,alpha,C) + Ta interactions at 4
.2 GeV/c per nucleon. It is shown that in the interactions of light nu
clei with carbon and tantalum nuclei, the shape of the proton spectra
in the studied energy range for emission angles theta > 30-degrees is
independent of the type of projectile nucleus. The shape of the spectr
a of protons with energy T > 0.4 GeV is independent of the type of tar
get nucleus, starting from theta = 20-degrees. The proton-yield cross
sections at fixed angles were studied as functions of the atomic weigh
ts of the colliding nuclei (A(P),A(T)). In each angular range, the dep
endence of dsigma/dOMEGA on A(P) can be represented by the power funct
ion A(P)alpha(P) for interactions on both light and heavy targets. The
angular dependences of the parameters alpha(P)C and alpha(P)Ta are ob
tained. For the power dependence of dsigma/dOMEGA on the atomic weight
of the target nucleus, A(T)alpha(T), the parameters alpha(T) increase
from approximately 0.5 to 1-1.1 as the angle theta increases from 0-d
egrees to 90-degrees.