Abstract
We present results from our recent investigation on hadronic interactions in heavy ion collisions. We study the production yields of a selected set of hadrons at the chemical freeze-out and their evolutions in the hadronic matter. The scattering cross sections with light mesons are studied in the meson-exchange model using effective Lagrangians to describe the dominant hadronic interaction during the hadronic stage of heavy ion collisions. We show that the hadron abundance may vary significantly for some hadrons after they are produced at the chemical freeze-out. We also comment on how such information can be used to identify and/or discriminate quantum numbers and structure of the hadron.
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