Influence of a quasi-molecular mechanism of recombination on the formation of hydrogen in the early Universe

T Kereselidze, I Noselidze… - Monthly Notices of the …, 2021 - academic.oup.com
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 …

Non-standard mechanism of recombination in the early Universe

T Kereselidze, I Noselidze… - Monthly Notices of the …, 2022 - academic.oup.com
In our recent papers, a non-standard quasi-molecular mechanism was suggested and
applied to treat the cosmological recombination. It was assumed that, in the pre …

Formation of hydrogen in the early universe: quasi-molecular mechanism of recombination

T Kereselidze, I Noselidze… - Monthly Notices of the …, 2019 - academic.oup.com
The recombination of an electron and a proton is assumed to occur in the presence of
another proton, which participates in the process. The system of colliding particles is …

A parabolic quasi-Sturmian approach to quantum scattering by a Coulomb-like potential

SA Zaytsev, LU Ancarani, AS Zaytsev… - The European Physical …, 2020 - Springer
A computational method in parabolic coordinates is proposed to treat the scattering of a
charged particle from both spherically and axially symmetric Coulomb-like potentials …

Radiative recombination of an electron on two protons: oscillator strengths

T Kereselidze, I Noselidze, Z Machavariani - The European Physical …, 2024 - Springer
The hydrogen molecular ion, H 2+, is considered in the fixed nuclei approximation. The
oscillator strengths relevant to free-bound transitions in H 2+ are presented as asymptotic …

Continuum solutions to the two–center Coulomb problem in prolate spheroidal coordinates

A Singor, JS Savage, I Bray, BI Schneider… - Computer Physics …, 2023 - Elsevier
We present a computational and theoretical framework for solving the Schrödinger equation
(SE) for the two–center Coulomb problem in prolate spheroidal coordinates when the …

A quasi-molecular mechanism of formation of hydrogen in the early Universe--a scheme of calculation

T Kereselidze, I Noselidze - arXiv preprint arXiv:2104.11584, 2021 - arxiv.org
In our recent papers (Kereslidze et all 2019a, 2021) a non-standard quasi-molecular
mechanism was suggested and applied to treat the cosmological recombination. It was …

Algebraic structure of Dirac–Pauli equation with account to AMM of neutron in the presence of magnetic field with cylindrical symmetry

M Seidi - Modern Physics Letters A, 2021 - World Scientific
The eigenvalues and eigenfunctions of Dirac–Pauli equation have been obtained for a
neutron with anomalous magnetic moment (AMM) in the presence of a strong magnetic field …

Generalized Sturmian Functions in prolate spheroidal coordinates

DM Mitnik, FA López, LU Ancarani - Molecular Physics, 2021 - Taylor & Francis
With the aim of describing bound and continuum states for diatomic molecules, we develop
and implement a spectral method that makes use of Generalized Sturmian Functions (GSF) …