Abstract
The transverse mass spectra and midrapidity yields for s and s are presented. For the 10% most central collisions, the ratio increases from the Super Proton Synchrotron to the Relativistic Heavy Ion Collider energies while the stays approximately constant. A hydrodynamically inspired model fit to the spectra, which assumes a thermalized source, seems to indicate that these multistrange particles experience a significant transverse flow effect, but are emitted when the system is hotter and the flow is smaller than values obtained from a combined fit to , , , and s.
- Received 30 July 2003
DOI:https://doi.org/10.1103/PhysRevLett.92.182301
©2004 American Physical Society