کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1854762 | 1035871 | 2006 | 103 صفحه PDF | دانلود رایگان |
The article reviews the physics related to kaon and antikaon production in heavy ion reactions at intermediate energies. Chiral dynamics predicts substantial modifications of the kaon properties in a dense nuclear environment. The status of the theoretical predictions as well as experimental evidence for medium effects such as repulsive/attractive mass shifts for K+/K−K+/K− are reviewed. In the vicinity of the thresholds, and even more pronounced below threshold, the production of strangeness is a highly collective process. Starting from elementary reaction channels the phenomenology of K+K+ and K−K− production, i.e. freeze-out densities, timescales etc. as derived from experiment and theoretical transport calculations is presented. Below threshold kaon production shows a high sensitivity to the nuclear compression reached in heavy ion reactions. This allows us to put constraints on the nuclear equation-of-state which are finally discussed.
Journal: Progress in Particle and Nuclear Physics - Volume 56, Issue 1, January 2006, Pages 1–103