Resonant vibrational excitation (RVE) cross sections have been calculated for the electron-H(2) molecule collisions in the energy range 11-14 eV involving the (2)Sigma(+)(g) excited electronic state of the molecular hydrogen ion H(2)(-). This state, whose threshold is located around 14 eV, gives rise to the so-called series a of the observed peaks in electron-impact differential cross-section measurements. The calculations have been performed within the local complex potential approximation by using the available theoretical potential energy and width for the (2)Sigma(+)(g) resonant state. The cross sections for all nu(i)=0 ->nu(f)=1-14 RVE transitions have been calculated. A satisfactory agreement of calculated cross sections with the available experimental data is obtained.

Cross sections for 11-14-eV e-H2 resonant collisions: Vibrational excitation / Celiberto, Roberto; Janev, Rk; Wadehra, Jm; Laricchiuta, A.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 77:1(2008), p. 012714. [10.1103/PhysRevA.77.012714]

Cross sections for 11-14-eV e-H2 resonant collisions: Vibrational excitation

CELIBERTO, Roberto;
2008-01-01

Abstract

Resonant vibrational excitation (RVE) cross sections have been calculated for the electron-H(2) molecule collisions in the energy range 11-14 eV involving the (2)Sigma(+)(g) excited electronic state of the molecular hydrogen ion H(2)(-). This state, whose threshold is located around 14 eV, gives rise to the so-called series a of the observed peaks in electron-impact differential cross-section measurements. The calculations have been performed within the local complex potential approximation by using the available theoretical potential energy and width for the (2)Sigma(+)(g) resonant state. The cross sections for all nu(i)=0 ->nu(f)=1-14 RVE transitions have been calculated. A satisfactory agreement of calculated cross sections with the available experimental data is obtained.
2008
Cross sections for 11-14-eV e-H2 resonant collisions: Vibrational excitation / Celiberto, Roberto; Janev, Rk; Wadehra, Jm; Laricchiuta, A.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 77:1(2008), p. 012714. [10.1103/PhysRevA.77.012714]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/8869
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