Jets of nuclear matter from high energy heavy ion collisions

Abstract

The fluid dynamical model is used to study the reactions $^{20}\mathrm{Ne}$+$^{238}\mathrm{U}$ and $^{40}\mathrm{Ar}$+$^{40}\mathrm{Ca}$ at ${E}_{\mathrm{lab}}=390$ MeV/nucleon. The calculated double differential cross sections ${d}^{2}\frac{\ensuremath{\sigma}}{d\ensuremath{\Omega}}\mathrm{dE}$ exhibit sidewards maxima in agreement with recent experimental data. The azimuthal dependence of the triple differential distributions, to be obtained from an event-by-event analysis of $4\ensuremath{\pi}$ exclusive experiments, can yield deeper insight into the collision process: Jets of nuclear matter are predicted with a strongly impact-parameter-dependent thrust angle ${\ensuremath{\theta}}_{\mathrm{jet}}(b)$.NUCLEAR REACTIONS Ar+Ca, Ne+U, ${E}_{\mathrm{lab}}=393$ MeV/nucleon, fluid dynamics with thermal breakup, double differential cross sections, azimuthal dependence of triple differential cross sections, event-by-event thrust analysis of $4\ensuremath{\pi}$ exclusive experiments.