论文标题
重新审视重组的准分子机制
Revisiting the quasi-molecular mechanism of recombination
论文作者
论文摘要
Kereselidze等人最近建议的重组的准分子机制是一个非标准的过程，在该过程中，电子和早期宇宙中的两个相邻质子直接形成一个高度激发的离子氢分子，然后在高度较低的水平或较低的水平或离心者中下降。有人提出，由于第二个质子的参与而引起的结合能增加可能导致较早的宇宙重组减轻哈勃张力。在更多细节中重新审视重组的准分子通道时，我们发现原始作品显着高估了相关时期中找到一对相邻质子的概率（$ z \ sim $ $几千）。我们的新估计表明，重组的准分子机制不能是哈勃张力的主要原因。
The quasi-molecular mechanism of recombination, recently suggested by Kereselidze et al., is a non-standard process where an electron and two neighboring protons in the early universe directly form an ionized hydrogen molecule in a highly excited state, which then descends to lower levels or dissociates. It has been suggested that the increased binding energy due to the participation of a second proton may lead to an earlier cosmic recombination that alleviates the Hubble tension. Revisiting the quasi-molecular channel of recombination in more details, we find that the original work significantly overestimated the probability of finding a pair of adjacent protons in the relevant epoch ($z\sim $ a few thousand). Our new estimation suggests that the quasi-molecular mechanism of recombination cannot be the primary cause of the Hubble tension.
