Jets of nuclear matter from high energy heavy ion collisions

The fluid dynamical model is used to study the reactions ${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$+${}_{}{}^{238}{}_{}{}^{}\mathrm{U}$ and ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ar}$+${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$ at $E_{\mathrm{lab}}=390\mathrm{}$ MeV/nucleon. The calculated double differential cross sections $d^2\frac{\sigma }{d\Omega }\mathrm{dE}$ 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 $4\pi$ exclusive experiments, can yield deeper insight into the collision process: Jets of nuclear matter are predicted with a strongly impact-parameter-dependent thrust angle ${\theta }_{\mathrm{jet}}\mathrm{}\left(b\right)\mathrm{}$.