dorsal/arxiv
View SchemaStrangeness dynamics in heavy-ion collisions: the K/pi ratios and the lifetime of a fireball
| Authors | Boris Tomasik, Evgeni E Kolomeitsev |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0512088 |
| URL | https://arxiv.org/abs/nucl-th/0512088 |
Abstract
We propose a non-equilibrium, hadronic kinetic model for describing the relative abundance of strange particles in ultra-relativistic heavy-ion collisions. The energy dependence of the multiplicity ratios of charged kaons and lambdas to pions are studied in detail. The pronounced peak in positively charged K/pi is conjectured to be due to the decreasing lifetime of a fireball with an increase in beam energy above 30 AGeV. Such a behaviour may be the consequence of a stronger stopping at lower beam energies. We study the dependence of the multiplicity ratios on energy and baryon density of the fireball and its total lifetime.
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"abstract": "We propose a non-equilibrium, hadronic kinetic model for describing the\nrelative abundance of strange particles in ultra-relativistic heavy-ion\ncollisions. The energy dependence of the multiplicity ratios of charged kaons\nand lambdas to pions are studied in detail. The pronounced peak in positively\ncharged K/pi is conjectured to be due to the decreasing lifetime of a fireball\nwith an increase in beam energy above 30 AGeV. Such a behaviour may be the\nconsequence of a stronger stopping at lower beam energies. We study the\ndependence of the multiplicity ratios on energy and baryon density of the\nfireball and its total lifetime.",
"arxiv_id": "nucl-th/0512088",
"authors": [
"Boris Tomasik",
"Evgeni E Kolomeitsev"
],
"categories": [
"nucl-th"
],
"title": "Strangeness dynamics in heavy-ion collisions: the K/pi ratios and the lifetime of a fireball",
"url": "https://arxiv.org/abs/nucl-th/0512088"
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