Flow anisotropy due to momentum deposition in ultra-relativistic nuclear collisions
arXiv:1611.08577 · doi:10.1051/epjconf/201713713019
Abstract
Minijets and jets are produced in large numbers in nuclear collisions at TeV energies, so that there are many of them in a single fireball. They deposit non-negligible amount of momentum and energy into the hydrodynamically expanding bulk and cause anisotropies of the expansion. Moreover, due to their multiple production in a single event the resulting anisotropies are correlated with the collision geometry and thus contribute positively also to event-averaged anisotropies in non-central collisions. Using simulations with three-dimensional ideal hydrodynamic model we demonstrate the importance of this effect. It must be taken into account if conclusions about the properties of the hot matter are to be drawn.
6 pages, 4 figures, Proceedings from XII Quark Confinement and the Hadron Spectrum, Thessaloniki, Grece, 28.8.2016-4.9.2016