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On the chemical equilibration of strangeness-exchange reaction in heavy-ion collisions | | J. Cleymans
; A. Foerster
; H. Oeschler
; K. Redlich
; F. Uhlig
; | | Date: |
9 Jun 2004 | | Journal: | Phys.Lett. B603 (2004) 146-151 | | Subject: | hep-ph | | Abstract: | The strangeness-exchange reaction pi + Y -> K- + N is shown to be the dynamical origin of chemical equilibration for K- production in heavy-ion collisions up to beam energies of 10 A GeV. The hyperons occurring in this process are produced associately with K+ in baryon-baryon and meson-baryon interactions. This connection is demonstrated by the ratio K-/K+ which does not vary with centrality and shows a linear correlation with the yield of pions per participant. At incident energies above AGS this correlation no longer holds due to the change in the production mechanism of kaons. | | Source: | arXiv, hep-ph/0406108 | | Services: | Forum | Review | PDF | Favorites | |
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