dorsal/arxiv
View SchemaMultiple parton interactions in high-density QCD matter
| Authors | Dinesh K. Srivastava, Klaus Geiger |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9806050 |
| URL | https://arxiv.org/abs/nucl-th/9806050 |
| DOI | 10.1016/S0375-9474(99)00003-2 |
| Journal | Nucl.Phys. A647 (1999) 136-152 |
Abstract
Multiple interactions of quarks and gluons in high-energy heavy-ion collisions may give rise to interesting phemomena of color charges propagating in high-density QCD matter. We study the dynamics of multi-parton systems produced in nucleus-nucleus collisions at energies corresponding the the CERN SPS and the future BNL RHIC experiments. Due to the complexity of the multi-particle dynamics we choose to employ the parton cascade model in order to simulate the development of multiple parton scatterings and associated stimulated emision processes. Our results indicate a non-linear increase with nuclear mass A of, e.g., parton multiplicity, energy density, strangeness, and contrast a linear A-scaling as in Glauber-type approaches. If multiple interactions are suppressed and only single parton scatterings (no re-interactions) are considered, we recover such a linear behavior. It remains to be studied whether these results on the parton level can be experimentally seen in final-state observables, such as the charged particle multiplicity, the magnitude of produced transverse energy, or the number of produced strange hadrons.
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"abstract": "Multiple interactions of quarks and gluons in high-energy heavy-ion\ncollisions may give rise to interesting phemomena of color charges propagating\nin high-density QCD matter. We study the dynamics of multi-parton systems\nproduced in nucleus-nucleus collisions at energies corresponding the the CERN\nSPS and the future BNL RHIC experiments. Due to the complexity of the\nmulti-particle dynamics we choose to employ the parton cascade model in order\nto simulate the development of multiple parton scatterings and associated\nstimulated emision processes. Our results indicate a non-linear increase with\nnuclear mass A of, e.g., parton multiplicity, energy density, strangeness, and\ncontrast a linear A-scaling as in Glauber-type approaches. If multiple\ninteractions are suppressed and only single parton scatterings (no\nre-interactions) are considered, we recover such a linear behavior. It remains\nto be studied whether these results on the parton level can be experimentally\nseen in final-state observables, such as the charged particle multiplicity, the\nmagnitude of produced transverse energy, or the number of produced strange\nhadrons.",
"arxiv_id": "nucl-th/9806050",
"authors": [
"Dinesh K. Srivastava",
"Klaus Geiger"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/S0375-9474(99)00003-2",
"journal_ref": "Nucl.Phys. A647 (1999) 136-152",
"title": "Multiple parton interactions in high-density QCD matter",
"url": "https://arxiv.org/abs/nucl-th/9806050"
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