- th / 0 41 10 10 v 1 2 N ov 2 00 4 Kaon and Pion production in relativistic heavy - ion collisions 1
نویسندگان
چکیده
The BUU transport model is applied to study strangeness and pion production in nucleus-nucleus collisions. Starting from proton induced reactions, we further investigate Si+Au, Au+Au and Pb+Pb collisions in the energy range between 2 and 40 A·GeV and compare with data and with other transport calculations. The q ¯ q annihilation, or resonance, channel simulated by the string model in meson-nucleon collisions at √ s > 2 GeV is introduced. The importance of this channel for a good description of the proton-nucleus data on K + production is demonstrated. We, furthermore, show that the meson-meson collisions contribute significantly to the KK production in heavy-ion collisions above 5 A GeV and improve an agreement with data on the K + /π + ratio. Finally, we study the influence of the in-medium modifications of the FRITIOF model on the pion and kaon production.
منابع مشابه
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