Light ion emission from reactions induced by 0.8-2.4 GeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ projectiles

Differential cross sections for the production of $Z=1, 2$ particles are measured for 52, 100, and 147 MeV/nucleon ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ projectiles. The projectile energy and target-mass dependencies are examined and compared with measurements in other projectile energy regimes. Central and peripheral collisions are found to give comparable contributions to the light ion yields, with the dominant process varying with the emission angle. The spectra are parametrized both in terms of a single heated, moving source and as a sum of fragmentation and central collision sources, and velocity and temperature parameters are presented. For composite particles, coalescence parameters and source radii are also extracted.

NUCLEAR REACTIONS $\mathrm{Ni}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}, X)$, $E=0.8, 1.6, 2.4$ GeV;$\mathrm{Au}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}, X)$, $E=1.6, 2.4$ GeV; Al, $\mathrm{Sn}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}, X)$, $E=1.6\mathrm{}$ GeV; measured $\sigma (E, \theta )$ for $X=\mathrm{p},\mathrm{d},\mathrm{t}, {}_{}{}^3{}_{}{}^{}\mathrm{He}, {}_{}{}^4{}_{}{}^{}\mathrm{He}$; deduced model parameters.