论文标题
重组的准分子机理对早期宇宙中氢的形成的影响
Influence of a quasi-molecular mechanism of recombination on the formation of hydrogen in the early universe
论文作者
论文摘要
在准分子方法的框架内，定量分析了宇宙进化前的氢原子的形成。绝热多层表示中的计算能够估算辐射过渡的概率。重组的准分子机理允许形成氢分子离子，即$ H_2^+$，处于基础状态。该过程的概率与产生原子氢的可能性相当。第二个质子参与重组会增加电子的结合能，并降低氢的重组速率。
In the framework of a quasi-molecular approach, the formation of hydrogen atom in the pre-recombination period of evolution of the universe is analysed quantitatively. Calculations in an adiabatic multi-level representation enable estimates of probabilities of radiative transitions. The quasi-molecular mechanism of recombination allows the formation of hydrogen molecular ion, $H_2^+$, in its ground state. The probability of this process is comparable with the probability of the creation of atomic hydrogen. The participation of a second proton in the recombination increases the binding energy of an electron and decreases the rate of recombination of hydrogen.
