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  Dissociative recombination of electrons with diatomic molecular cations above dissociation threshold: Application to H2+ and HD+

Chakrabarti, K., Backodissa-Kiminou, D. R., Pop, N., Mezei, J. Z., Motapon, O., Lique, F., et al. (2013). Dissociative recombination of electrons with diatomic molecular cations above dissociation threshold: Application to H2+ and HD+. Physical Review A, 87(2): 022702, pp. 1-10. doi:10.1103/PhysRevA.87.022702.

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Chakrabarti, K.1, 2, Author
Backodissa-Kiminou, D. R.1, Author
Pop, N.3, Author
Mezei, J. Zs.1, 4, 5, Author
Motapon, O.6, Author
Lique, F.1, Author
Dulieu, O.4, Author
Wolf, Andreas7, Author           
Schneider, I. F.1, Author
Affiliations:
1LOMC CNRS-UMR-6294, Université du Havre, Le Havre 76058, France, ou_persistent22              
2Department of Mathematics, Scottish Church College, 1&3 Urquhart Square, Kolkata 700 006, India, ou_persistent22              
3Department of Physical Foundations of Engineering, “Politehnica” University of Timisoara, V. Parvan Street, No.2, Timisoara 300006, Romania, ou_persistent22              
4Laboratoire Aimé Cotton CNRS-UPR-3321, Université Paris-Sud, Orsay F-91405, France, ou_persistent22              
5Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen H-4001, Hungary, ou_persistent22              
6Department of Physics, University of Douala, P.O. Box 24157, Douala, Cameroon, ou_persistent22              
7Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

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 Abstract: Our approach to the dissociative recombination and competitive processes based on the multichannel quantum defect theory is extended to the full account of the dissociative excitation, including the electronic excitation of the molecular ion. Compared to other existing modelings, ours relies on a simpler and less-time-consuming discretization of the vibrational continua of the target ion and to a more accurate account of the Rydberg-valence interactions via a second-order solution of the Lippman-Schwinger equation. A thorough study of the competition among the dissociative recombination, vibrational excitation, and dissociative excitation is performed, including a detailed analysis of the two different mechanisms governing the ion dissociation. The application of our method to the high-energy electron collisions with H2+ and HD+ ions results in a cross section in good agreement with the best previous modeling and with the most recent measurements performed in the Test Storage Ring of the Max-Planck-Institut für Kernphysik in Heidelberg.

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Language(s): eng - English
 Dates: 2013-02-06
 Publication Status: Published online
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevA.87.022702
 Degree: -

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Title: Physical Review A
  Other : Phys. Rev. A
Source Genre: Journal
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Publ. Info: New York, NY : Published by the American Physical Society through the American Institute of Physics
Pages: - Volume / Issue: 87 (2) Sequence Number: 022702 Start / End Page: 1 - 10 Identifier: ISSN: 1050-2947
CoNE: https://pure.mpg.de/cone/journals/resource/954925225012_2