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

We study the elliptic flow v2 of multi-strange hadrons such as the phi, Ξ and Ω 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 v2 for the phi and Ω will allow for the unambiguous distinction between parton recombination and statistical hadro-chemistry to be the dominant process in hadronization at intermediate transverse momenta