Possible origin of the different behaviors of the K++ and the K-- excitation functions

Minjung Kweon, Byungsik Hong

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The beam energy dependences of the K++ and the K-- yield ratios in relativistic heavy-ion collisions are explained in the framework of the statistical thermal model from Heavy Ion Synchrotron to Relativistic Heavy Ion Collider energies. The completely different behaviors between positive and negative charges, which were first observed experimentally, are a natural outcome of the model with a proper choice of the freeze-out temperature and chemical potentials. We will also compare the kaon and pion yields with the elementary p + p data scaled by the number of participant nucleons. This analysis shows an enhancement of kaons at Super Proton Synchrotron energies, but a suppression of pions at Alternate Gradient Synchrotron and Relativistic Heavy Ion Collider energies.

Original languageEnglish
Pages (from-to)593-599
Number of pages7
JournalJournal of the Korean Physical Society
Volume42
Issue number5
Publication statusPublished - 2003 May 1

Fingerprint

heavy ions
synchrotrons
excitation
pions
kaons
energy
nucleons
ionic collisions
retarding
gradients
protons
augmentation
temperature

Keywords

  • Excitation functions
  • Heavy-ion collisions
  • Kaon-to-pion ratio

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Possible origin of the different behaviors of the K++ and the K-- excitation functions. / Kweon, Minjung; Hong, Byungsik.

In: Journal of the Korean Physical Society, Vol. 42, No. 5, 01.05.2003, p. 593-599.

Research output: Contribution to journalArticle

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