Microscopic calculation of in-medium proton-proton cross sections.
Microscopic calculation of in-medium proton-proton cross sections.
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DOI：
10.1103/physrevc.49.566
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发表时间：
1993-08
期刊：
影响因子：
--
通讯作者：
Li;Machleidt
中科院分区：
文献类型：
--
作者：
Li;Machleidt
我们基于波恩核子-核子势和核物质的狄拉克-布鲁克纳方法，在微观模型中得出了介质中[初始质子][减去][初始质子]横截面。我们证明了质子-质子截面和中子-质子截面之间的差异，并指出需要仔细区分这两种情况。我们还发现我们的介质横截面和重离子反应中常用的唯象参数化之间存在显着差异。
We derive in-medium [ital proton][minus][ital proton] cross sections in a microscopic model based upon the Bonn nucleon-nucleon potential and the Dirac-Brueckner approach for nuclear matter. We demonstrate the difference between proton-proton and neutron-proton cross sections and point out the need to distinguish carefully between the two cases. We also find substantial differences between our in-medium cross sections and phenomenological parametrizations that are commonly used in heavy-ion reactions.