Correlated fission fragments emitted in the reaction of O16 on U238 at 20 MeV/nucleon

The reactions induced by 315-MeV $^{16}\mathrm{O}$ ions on $^{238}\mathrm{U}$ have been studied by observing the folding angle between the two fission fragments resulting from the sequential fission decay of the target residue in coincidence with reaction products ranging from protons to $^{16}\mathrm{O}$ ions. A kinematical analysis shows that the emission of light particles ($p$, $d$, $t$, $\ensuremath{\alpha}$) plays an important role for both central and peripheral reactions. It is concluded that these particles, most likely, are emitted during the early stages of the reaction.NUCLEAR REACTIONS, FISSION $^{238}\mathrm{U}(^{16}\mathrm{O}, Xf)$, $X=p, d, t, \dots{}$, $O$, $E=315$ MeV; measured $\ensuremath{\sigma}({E}_{x})$ and fission fragment folding angle distributions. Deduced missing momentum and fission fragment mass distributions.