Abstract:
We study the elliptic flow $v_2$ of
multi-strange hadrons
such as the $\phi$, $\Xi$ and $\Omega$ as a
function of the
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
$\phi$ and
$\Omega$ will allow for the unambiguous
distinction between
parton recombination and conventional
hydrodynamics as the
source of the elliptic flow.