Elliptic flow of multi-strange particles: fragmentation, recombination and hydrodynamics

We study the elliptic flow $v_2$ of multi-strange hadrons such as the $\varphi$, $\mathrm{\Xi }$ and $\mathrm{\Omega }$ as a function of transverse momentum in the recombination and fragmentation model and compare to a standard hydrodynamic calculation. We find that the measurement of $v_2$ for the $\varphi$ and $\mathrm{\Omega }$ will allow for the unambiguous distinction between parton recombination and statistical hadro-chemistry to be the dominant process in hadronization at intermediate transverse momenta.