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Multistrange Baryon Production in Au-Au Collisions atsNN=130 GeV
- Source :
- Physical Review Letters. 92
- Publication Year :
- 2004
- Publisher :
- American Physical Society (APS), 2004.
-
Abstract
- The transverse mass spectra and midrapidity yields for Xis and Omegas are presented. For the 10% most central collisions, the (Xi) over bar (+)/h(-) ratio increases from the Super Proton Synchrotron to the Relativistic Heavy Ion Collider energies while the Xi(-)/h(-) stays approximately constant. A hydrodynamically inspired model fit to the Xi 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 pi, K, p, and Lambdas.
- Subjects :
- Physics
010308 nuclear & particles physics
General Physics and Astronomy
Strangeness production
01 natural sciences
7. Clean energy
Super Proton Synchrotron
Spectral line
Baryon
Nuclear physics
0103 physical sciences
Transverse flow effect
Transverse mass
Nuclear Experiment
010306 general physics
Relativistic Heavy Ion Collider
Bar (unit)
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi...........ab784125cd906f6dd74dcd29232543d7