强耦合离子混合物的Nuclear fusion反应速率
Nuclear fusion reaction rates for strongly coupled ionic mixtures
摘要：
我们分析了等离子体屏蔽对由一种或两种类型的原子核组成的致密物质中的核反应速率的影响。我们进行半经典计算的库仑势垒穿透考虑到径向平均场电位的等离子体离子。平均场势是从大量的蒙特卡罗计算的结果中提取的径向对分布函数的离子在二元离子混合物。我们计算的反应速率在很宽的范围内的等离子体参数和近似这些速率的分析表达式，预计将适用于多组分离子混合物。此外，我们分析了伽莫夫峰能量的反应离子在各种核燃烧制度。为了说明，我们研究核燃烧的C-O混合物。
英文摘要：
We analyze the effect of plasma screening on nuclear reaction rates in dense matter composed of atomic nuclei of one or two types. We perform semiclassical calculations of the Coulomb barrier penetrability taking into account a radial mean field potential of plasma ions. The mean field potential is extracted from the results of extensive Monte Carlo calculations of radial pair distribution functions of ions in binary ionic mixtures. We calculate the reaction rates in a wide range of plasma parameters and approximate these rates by an analytical expression that is expected to be applicable for multicomponent ions mixtures. Also, we analyze Gamow-peak energies of reacting ions in various nuclear burning regimes. For illustration, we study nuclear burning in C-O mixtures.
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