Elliptic flow of multi-strange particles: fragmentation, recombination and hydrodynamics
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We study the elliptic flow v 2 of multi-strange hadrons such as the , and 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 and will allow for the unambiguous distinction between parton recombination and statistical hadro-chemistry to be the dominant process in hadronization at intermediate transverse momenta. 2004 Published by Elsevier B.V.