Abstract
We present the scaling properties of , , and in midrapidity collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at . The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of , indicating an increase of the strange-quark density of the matter produced. The strange phase-space occupancy factor approaches unity for the most central collisions. Moreover, the nuclear modification factors of , , and are consistent with each other for in agreement with a scenario of hadron formation from constituent quark degrees of freedom.
- Received 8 June 2006
DOI:https://doi.org/10.1103/PhysRevLett.98.062301
©2007 American Physical Society