dorsal/arxiv
View SchemaBaryon-Strangeness Correlations from Hadron/String- and Quark-Dynamics
| Authors | Stephane Haussler, Marcus Bleicher |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0611002 |
| URL | https://arxiv.org/abs/nucl-th/0611002 |
| DOI | 10.1063/1.2714421 |
| Journal | AIPConf.Proc.892:372-376,2007 |
Abstract
Baryon-strangeness correlations ($C_{BS}$) are studied with a hadron/string transport approach (UrQMD) and a dynamical quark recombination model (quark molecular dynamics, qMD) for various energies from $E_{lab}=4A$ GeV to $\sqrt{s_{NN}}=200$ GeV. As expected, we find that the hadron/string dynamics shows correlations similar to a simple hadron gas. In case of the quark molecular dynamics, we find that initially the $C_{BS}$ correlation is that of a weakly interacting QGP but changes in the process of hadronization also to the value for a hadron gas. Therefore, we conclude that the hadronization process itself makes the initial baryon strangeness correlation unobservable. To make an experimental study of this observable more feasible, we also investigate how a restriction to only charged kaons and $\Lambda$'s (instead of all baryons and all strange particles) influences the theoretical result on $C_{BS}$. We find that a good approximation of the full result can be obtained in this limit in the present simulation.
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"abstract": "Baryon-strangeness correlations ($C_{BS}$) are studied with a hadron/string\ntransport approach (UrQMD) and a dynamical quark recombination model (quark\nmolecular dynamics, qMD) for various energies from $E_{lab}=4A$ GeV to\n$\\sqrt{s_{NN}}=200$ GeV. As expected, we find that the hadron/string dynamics\nshows correlations similar to a simple hadron gas. In case of the quark\nmolecular dynamics, we find that initially the $C_{BS}$ correlation is that of\na weakly interacting QGP but changes in the process of hadronization also to\nthe value for a hadron gas. Therefore, we conclude that the hadronization\nprocess itself makes the initial baryon strangeness correlation unobservable.\nTo make an experimental study of this observable more feasible, we also\ninvestigate how a restriction to only charged kaons and $\\Lambda$\u0027s (instead of\nall baryons and all strange particles) influences the theoretical result on\n$C_{BS}$. We find that a good approximation of the full result can be obtained\nin this limit in the present simulation.",
"arxiv_id": "nucl-th/0611002",
"authors": [
"Stephane Haussler",
"Marcus Bleicher"
],
"categories": [
"nucl-th"
],
"doi": "10.1063/1.2714421",
"journal_ref": "AIPConf.Proc.892:372-376,2007",
"title": "Baryon-Strangeness Correlations from Hadron/String- and Quark-Dynamics",
"url": "https://arxiv.org/abs/nucl-th/0611002"
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