期刊论文

Adams, J

英文

PHYSICAL REVIEW LETTERS

0031-9007

2004

92

18

182301-1-182301-6

10.1103/PhysRevLett.92.182301

We thank the RHIC Operations Group and RCF at BNL and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE, the U.S. NSF, ?>the BMBF of Germany, IN2P3, RA, RPL, and EMN ?>of France, EPSRC of the United Kingdom, FAPESP of Brazil, the Russian Ministry of Science and Technology, the Ministry of Education and the NNSFC of China, SFOM of the Czech Republic, DAE, DST, and CSIR of the Government of India, and the Swiss NSF.

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The transverse mass spectra and midrapidity yields for Ξs and ω are presented. For the 10% most central collisions, the Ξ+/h- ratio increases from the Super Proton Synchrotron to the Relativistic Heavy Ion Collider energies while the Ξ-/h- stays approximately constant. A hydrodynamically inspired model fit to the H 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 com...