On the chemical equilibration of strangeness-exchange reaction in heavy-ion collisions
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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.
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Cited by 1 Pith paper
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Probing Late-Stage Hadronic Interactions at High Baryon Density via $K^{*0}$ Production in the RHIC Beam Energy Scan Program
K*0/K yield ratios in central Au+Au collisions at BES energies are suppressed relative to peripheral collisions and thermal predictions, indicating hadronic rescattering that strengthens at lower energies.
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