dorsal/arxiv
View SchemaFlavor Production in Pb(160AGeV) on Pb Collisions: Effect of Color Ropes and Hadronic Rescattering
| Authors | H. Sorge |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9509007 |
| URL | https://arxiv.org/abs/nucl-th/9509007 |
| DOI | 10.1103/PhysRevC.52.3291 |
| Journal | Phys.Rev.C52:3291-3314,1995 |
Abstract
Collective interactions in the preequilibrium quark matter and hadronic resonance gas stage of ultrarelativistic nucleus-nucleus collisions are studied in the framework of the the transport theoretical approach RQMD. The paper reviews string fusion into color ropes and hadronic rescattering which serve as models for these interactions. Hadron production in central Pb(160AGeV) on Pb collisions has been calculated. The changes of the final flavor composition are more pronounced than in previous RQMD studies of light ion induced reactions at 200AGeV. The ratio of created quark pairs $s\bar{s}$/($u\bar{u}$+$d\bar{d}$) is enhanced by a factor of 2.4 in comparison to $pp$ results. Color rope formation increases the initially produced antibaryons to 3 times the value in the `NN mode', but only one quarter of the produced antibaryons survives because of subsequent strong absorption. The differences in the final particle composition for Pb on Pb collisions compared to S induced reactions are attributed to the hadronic resonance gas stage which is baryon-richer and lasts longer.
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"abstract": "Collective interactions in the preequilibrium quark matter and hadronic\nresonance gas stage of ultrarelativistic nucleus-nucleus collisions are studied\nin the framework of the the transport theoretical approach RQMD. The paper\nreviews string fusion into color ropes and hadronic rescattering which serve as\nmodels for these interactions. Hadron production in central Pb(160AGeV) on Pb\ncollisions has been calculated. The changes of the final flavor composition are\nmore pronounced than in previous RQMD studies of light ion induced reactions at\n200AGeV. The ratio of created quark pairs $s\\bar{s}$/($u\\bar{u}$+$d\\bar{d}$) is\nenhanced by a factor of 2.4 in comparison to $pp$ results. Color rope formation\nincreases the initially produced antibaryons to 3 times the value in the `NN\nmode\u0027, but only one quarter of the produced antibaryons survives because of\nsubsequent strong absorption. The differences in the final particle composition\nfor Pb on Pb collisions compared to S induced reactions are attributed to the\nhadronic resonance gas stage which is baryon-richer and lasts longer.",
"arxiv_id": "nucl-th/9509007",
"authors": [
"H. Sorge"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.52.3291",
"journal_ref": "Phys.Rev.C52:3291-3314,1995",
"title": "Flavor Production in Pb(160AGeV) on Pb Collisions: Effect of Color Ropes and Hadronic Rescattering",
"url": "https://arxiv.org/abs/nucl-th/9509007"
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