/ 0 40 30 27 v 1 1 6 M ar 2 00 4 Elliptic flow of multi - strange baryons Ξ and Ω in Au + Au collisions at √ s NN = 200 GeV

نویسنده

  • Javier Castillo
چکیده

The first measurement of the elliptic transverse flow for multi-strange baryons Ξ and Ω 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 Ξand Ξ + 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.

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تاریخ انتشار 2004