Multistrange baryon production in au-au collisions at √sNN= 130 GeV

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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 combined fit to π, K, p, and Λs.

Original languageEnglish
Article number182301
Pages (from-to)182301-1-182301-6
JournalPhysical Review Letters
Issue number18
StatePublished - May 7 2004

Bibliographical note

Funding Information:
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.

Publisher Copyright:
© 2004 The American Physical Society.

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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