Elliptic flow of multi-strange baryons Xi and Omega in Au+Au collisions at sqrt(s_NN)=200 GeV

Abstract

The first measurement of the elliptic transverse flow for multi-strange baryons Xi and Omega in high energy heavy ion collisions is presented, which may indicate the presence of partonic collectivity. A hydrodynamically inspired model fit to the transverse momentum spectra and elliptic flow of Xi- and AntiXi+ indicates that these particles might be emitted from the system at a high temperature (~150 MeV) with significant radial transverse flow and that the emitting system is spatially asymmetric.

Contribution to the Quark Matter 2004 proceedings, 5 pages, 4 figures

References in corpus (2)

• Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions
• Flow in ultra-relativistic heavy ion collisions

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• Observation of modified hadronization in relativistic Au+Au collisions: a promising signature for deconfined quark-gluon matter
• Pion-Xi correlations in Au-Au collisions at STAR
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• Anisotropic Flow at the Relativistic Heavy Ion Collider