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  Inelastic processes in copper-hydrogen collisions including fine-structure effects

Belyaev, A. K., Yakovleva, S. A., & Kraemer, W. P. (2020). Inelastic processes in copper-hydrogen collisions including fine-structure effects. Monthly Notices of the Royal Astronomical Society, 501(4), 4968-4973. doi:10.1093/mnras/staa3974.

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Belyaev, Andrey K., Author
Yakovleva, Svetlana A., Author
Kraemer, Wolfgang P.1, Author           
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1Molecular Physics, Stellar Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159882              

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 Abstract: Inelastic processes in low-energy Cu + H and Cu+ + H collisions, 306 partial processes in total, are investigated taking fine-structure effects into account. We use the asymptotic approach to model the adiabatic potentials and adapt a recently proposed method to include the copper fine structure. The nuclear dynamics is performed by the multichannel analytical approach and the Landau–Zener model. The rate coefficients are calculated for the temperature range of 1000–10 000 K. The largest rate coefficient is obtained for the mutual neutralization process Cu+ + H → Cu(3d105s 2S1/2) + H with a value of 3.81×10−8cm3s−1 at a temperature of 6000 K . It is shown that the practice to redistribute LS-coupling rate coefficients among fine-structure sublevels can give rates that deviate significantly from those calculated in the JJ-coupling scheme, that is with account for the fine-structure effects.

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 Dates: 2020-12-26
 Publication Status: Published online
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 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnras/staa3974
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Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 501 (4) Sequence Number: - Start / End Page: 4968 - 4973 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150