SYMMETRIZATION OF EMITTER SIZE IN VIOLENT LIGHT HEAVY-ION COLLISIONS AT INTERMEDIATE-ENERGY

Vaporization and high multiplicity events, where the nuclear system is almost completely disassembled in light charged particles (Z less tha n or equal to 2), were analyzed for events with total charge detected (Sigma Z = 23) in the Cl-35 + C-12 reaction at 43 MeV/nucleon. Kinemat ic characteristics have been studied separately for Z=1, Z=2, and Z=3- 4 particles. When those are compared to simulations, noticeable differ ences in privileged emission direction have been found between Z great er than or equal to 2 particles and protons. For violent reactions, th ese differences could be explained by the apparent ''symmetrization'' of the reaction partners via the formation of a large necklike structu re, and its subsequent breakup into many light ions.