Event-by-event analysis of baryon-strangeness correlations : pinning down the critical temperature and volume of QGP formation
- The recently proposed baryon-strangeness correlation (C_BS) is studied with a string-hadronic transport model (UrQMD) for various energies from E_lab=4 AGeV to \sqrt s=200 AGeV. It is shown that rescattering among secondaries can not mimic the predicted correlation pattern expected for a Quark-Gluon-Plasma. However, we find a strong increase of the C_BS correlation function with decreasing collision energy both for pp and Au+Au/Pb+Pb reactions. For Au+Au reactions at the top RHIC energy (\sqrt s=200 AGeV), the C_BS correlation is constant for all centralities and compatible with the pp result. With increasing width of the rapidity window, C_BS follows roughly the shape of the baryon rapidity distribution. We suggest to study the energy and centrality dependence of C_BS which allow to gain information on the onset of the deconfinement transition in temperature and volume.
| Author: | Stéphane HausslerGND, Horst StöckerORCiDGND, Marcus BleicherORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-19740 |
| DOI: | https://doi.org/10.48550/arXiv.hep-ph/0507189 |
| ArXiv Id: | http://arxiv.org/abs/hep-ph/0507189 |
| Parent Title (German): | Physical Review C |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 2005/07/15 |
| Date of first Publication: | 2005/07/15 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2005/10/27 |
| Volume: | 73 |
| Issue: | 021901(R) |
| Page Number: | 4 |
| Note: | Preprint, später in Physical Review C, 73.2006, 021901(R) |
| HeBIS-PPN: | 190629320 |
| Institutes: | Physik / Physik |
| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Deutsches Urheberrecht |
