关于早期宇宙中LiH和LiH +分子的相对丰度：量子反应的新结果
On the relative abundance of LiH and LiH+ molecules in the early universe: new results from quantum reactions
摘要：
化学途径，可以导致LiH和LiH+分子的破坏，证实是存在于原始气体和控制分子冷却过程中的引力坍缩的后重组时代的相对效率，是通过使用精确的量子计算所涉及的几个反应。新的速率被用来调查这些分子在早期宇宙条件下感兴趣的红移处的相对丰度的行为。我们发现显着的差异与以前的计算，目前的产生LIH丰度高于LiH+在所有的红移。
英文摘要：
The relative efficiencies of the chemical pathways that can lead to the destruction of LiH and LiH+ molecules, conjectured to be present in the primordial gas and to control molecular cooling processes in the gravitational collapse of the post-recombination era, are revisited by using accurate quantum calculations for the several reactions involved. The new rates are employed to survey the behavior of the relative abundance of these molecules at redshifts of interest for early universe conditions. We find significant differences with respect to previous calculations, the present ones yielding LIH abundances higher than LiH+ at all redshifts.
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