Chemical equilibration and freeze-out in nucleus-nucleus collisions at incident beam energies from 1A to 2A GeV

Byungsik Hong, Norbert Herrmann

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Chemical equilibrium in relativistic nucleus-nucleus collisions at incident beam energies from 1A to 2A GeV is tested. The yields of nonstrange particles are consistent with the chemical equilibrium scenario. However, strange hadrons are not in chemical equilibrium with nonstrange particles, while the relative yields of strange hadrons among themselves are in agreement with the model calculation, taking into account the current experimental errors. The freeze-out points at these beam energies are far below the estimated deconfinement phase boundary, in contrast to the results at the Alternating Gradient Synchrotron and the Super Proton Synchrotron.

Original languageEnglish
JournalJournal of the Korean Physical Society
Volume32
Issue number5
Publication statusPublished - 1998 Dec 1

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chemical equilibrium
hadrons
nuclei
collisions
synchrotrons
energy
gradients
protons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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abstract = "Chemical equilibrium in relativistic nucleus-nucleus collisions at incident beam energies from 1A to 2A GeV is tested. The yields of nonstrange particles are consistent with the chemical equilibrium scenario. However, strange hadrons are not in chemical equilibrium with nonstrange particles, while the relative yields of strange hadrons among themselves are in agreement with the model calculation, taking into account the current experimental errors. The freeze-out points at these beam energies are far below the estimated deconfinement phase boundary, in contrast to the results at the Alternating Gradient Synchrotron and the Super Proton Synchrotron.",
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N2 - Chemical equilibrium in relativistic nucleus-nucleus collisions at incident beam energies from 1A to 2A GeV is tested. The yields of nonstrange particles are consistent with the chemical equilibrium scenario. However, strange hadrons are not in chemical equilibrium with nonstrange particles, while the relative yields of strange hadrons among themselves are in agreement with the model calculation, taking into account the current experimental errors. The freeze-out points at these beam energies are far below the estimated deconfinement phase boundary, in contrast to the results at the Alternating Gradient Synchrotron and the Super Proton Synchrotron.

AB - Chemical equilibrium in relativistic nucleus-nucleus collisions at incident beam energies from 1A to 2A GeV is tested. The yields of nonstrange particles are consistent with the chemical equilibrium scenario. However, strange hadrons are not in chemical equilibrium with nonstrange particles, while the relative yields of strange hadrons among themselves are in agreement with the model calculation, taking into account the current experimental errors. The freeze-out points at these beam energies are far below the estimated deconfinement phase boundary, in contrast to the results at the Alternating Gradient Synchrotron and the Super Proton Synchrotron.

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