Event-by-event analysis of baryon-strangeness correlations: Pinning down the critical temperature and volume of quark-gluon-plasma formation

Journal Article · Wed Feb 15 04:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.021901· OSTI ID:20771246

Haussler, Stephane ^[1]; Stoecker, Horst ^[1]; Bleicher, Marcus ^[2]

---

1. Frankfurt Institute for Advanced Studies (FIAS), Johann Wolfgang Goethe Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)
2. Institut fuer Theoretische Physik, Johann Wolfgang Goethe Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)

The recently proposed baryon-strangeness correlation (C{sub BS}) is studied with a string-hadronic transport model (UrQMD) for various energies from E{sub lab}=4A GeV to {radical}(s)=200A GeV. It is shown that rescattering among secondaries cannot mimic the predicted correlation pattern expected for a quark-gluon-plasma. However, we find a strong increase of the C{sub BS} correlation function with decreasing collision energy for p+p and Au+Au and/or Pb+Pb reactions. For Au+Au reactions at the top BNL Relativistic Heavy Ion Collider energy ({radical}(s)=200A GeV), the C{sub BS} correlation is constant for all centralities and compatible with the p+p result. With increasing width of the rapidity window, C{sub BS} follows roughly the shape of the baryon rapidity distribution. We suggest studying the energy and centrality dependence of C{sub BS} to gain information on the onset of the deconfinement transition in temperature and volume.

• OSTI ID: 20771246
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 73; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BROOKHAVEN RHIC
CORRELATION FUNCTIONS
CORRELATIONS
CRITICAL TEMPERATURE
DISTRIBUTION
GEV RANGE
GOLD 197 REACTIONS
GOLD 197 TARGET
LEAD 208 REACTIONS
LEAD 208 TARGET
PARTICLE RAPIDITY
PROTON-PROTON INTERACTIONS
QUARK MATTER
RESCATTERING
STRANGENESS