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Rotationally inelastic collisions of electrons with \(\mathsf{H_2}\) and \(\mathsf{N_2}\) molecules: converged space-frame calculations at low energies

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Abstract.

The quantum treatment of the collisional excitation of rotations in H2 and N2 gases as test molecules is carried out within a space-fixed frame of reference by solving the multichannel close-coupled equations using an approach newly developed in our group, i.e. the modified variable phase approximation (MVPA). The interaction potentials contain the static, exchange and correlation-polarisation contributions and are obtained via a local, multipolar expansion formulation from ab initio data. The results are compared with existing experiments and produce numerically converged rotationally inelastic cross-sections obtained from an exact molecular-frame treatment of the problem.

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Authors and Affiliations

  1. Department of Chemistry and INFM, University of Rome “La Sapienza”, P.A. Moro 5, 00185, Roma, Italy

    S. Telega, E. Bodo & F. A. Gianturco

Authors
  1. S. Telega
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  2. E. Bodo
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  3. F. A. Gianturco
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Corresponding author

Correspondence to F. A. Gianturco.

Additional information

Received: 1 December 2003, Published online: 15 April 2004

PACS:

34.80.Bm Elastic scattering of electrons by atoms and molecules - 34.80.Gs Molecular excitation and ionization by electron impact

S. Telega: Present address: Faculty of Applied Physics and Mathematics, Technical University of Gdansk, 80952 Gdansk, Poland.

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Telega, S., Bodo, E. & Gianturco, F.A. Rotationally inelastic collisions of electrons with \(\mathsf{H_2}\) and \(\mathsf{N_2}\) molecules: converged space-frame calculations at low energies. Eur. Phys. J. D 29, 357–365 (2004). https://doi.org/10.1140/epjd/e2004-00046-x

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