Energy dependence of strangeness production

We present a summary of strange particle yields measured by the experiment NA49 in central Pb+Pb collisions in the beam energy range 20-158 AGeV. The comparison with thermal hadron model results shows that above 30 AGeV, a strangeness undersaturation parameter $\gamma_S$ must be employed to describe...

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Detalles Bibliográficos
Autor principal: Friese, Volker
Lenguaje:eng
Publicado: 2004
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1088/0954-3899/31/6/035
http://cds.cern.ch/record/809756
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author Friese, Volker
author_facet Friese, Volker
author_sort Friese, Volker
collection CERN
description We present a summary of strange particle yields measured by the experiment NA49 in central Pb+Pb collisions in the beam energy range 20-158 AGeV. The comparison with thermal hadron model results shows that above 30 AGeV, a strangeness undersaturation parameter $\gamma_S$ must be employed to describe the data. This suggests a change in the strangeness production mechanism at this energy. We find that the UrQMD transport model in all cases underpredicts the observed particle yields.
id cern-809756
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
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spelling cern-8097562023-03-12T04:52:28Zdoi:10.1088/0954-3899/31/6/035http://cds.cern.ch/record/809756engFriese, VolkerEnergy dependence of strangeness productionNuclear Physics - ExperimentWe present a summary of strange particle yields measured by the experiment NA49 in central Pb+Pb collisions in the beam energy range 20-158 AGeV. The comparison with thermal hadron model results shows that above 30 AGeV, a strangeness undersaturation parameter $\gamma_S$ must be employed to describe the data. This suggests a change in the strangeness production mechanism at this energy. We find that the UrQMD transport model in all cases underpredicts the observed particle yields.We present a summary of strange particle yields measured by the experiment NA49 in central Pb+Pb collisions in the beam energy range 20-158 AGeV. The comparison with thermal hadron model results shows that above 30 AGeV, a strangeness undersaturation parameter gamma_S must be employed to describe the data. This suggests a change in the strangeness production mechanism at this energy. We find that the UrQMD transport model in all cases underpredicts the observed particle yields.We present a summary of strange particle yields measured by the experiment NA49 in central Pb+Pb collisions in the beam energy range 20-158 AGeV. The comparison with thermal hadron model results shows that above 30 AGeV, a strangeness undersaturation parameter gamma_S must be employed to describe the data. This suggests a change in the strangeness production mechanism at this energy. We find that the UrQMD transport model in all cases underpredicts the observed particle yields.We present a summary of strange particle yields measured by the experiment NA49 in central Pb+Pb collisions in the beam energy range 20-158 AGeV. The comparison with thermal hadron model results shows that above 30 AGeV, a strangeness undersaturation parameter gamma_S must be employed to describe the data. This suggests a change in the strangeness production mechanism at this energy. We find that the UrQMD transport model in all cases underpredicts the observed particle yields.nucl-ex/0412013oai:cds.cern.ch:8097562004-12-08
spellingShingle Nuclear Physics - Experiment
Friese, Volker
Energy dependence of strangeness production
title Energy dependence of strangeness production
title_full Energy dependence of strangeness production
title_fullStr Energy dependence of strangeness production
title_full_unstemmed Energy dependence of strangeness production
title_short Energy dependence of strangeness production
title_sort energy dependence of strangeness production
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1088/0954-3899/31/6/035
http://cds.cern.ch/record/809756
work_keys_str_mv AT friesevolker energydependenceofstrangenessproduction

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