Influence of a quasi-molecular mechanism of recombination on the formation of hydrogen in the early universe. (arXiv:2008.01660v1 [physics.atom-ph])
<a href="http://arxiv.org/find/physics/1/au:+Kereselidze_T/0/1/0/all/0/1">Tamaz Kereselidze</a>, <a href="http://arxiv.org/find/physics/1/au:+Noselidze_I/0/1/0/all/0/1">Irakli Noselidze</a>, <a href="http://arxiv.org/find/physics/1/au:+Ogilvie_J/0/1/0/all/0/1">John F. Ogilvie</a>
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.
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.
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