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Article Dans Une Revue Journal of Physics B: Atomic, Molecular and Optical Physics Année : 2021

Formation of negative-ion resonance and dissociative attachment in collisions of NO 2 with electrons

Hainan Liu
  • Fonction : Auteur
Xianwu Jiang
  • Fonction : Auteur
Chi-Hong Yuen
Mehdi Ayouz

Résumé

Abstract The process of electron attachment to the NO 2 molecule is investigated theoretically using an approach based on a study by O’Malley (1966 Phys. Rev. 150 14). The approach combines the normal mode approximation for representation of vibrational dynamics of NO 2 and one-dimensional treatment, along each normal mode, of the attachment process as in O’Malley’s theory, such that only a modest computational effort is required to compute the attachment cross section. Taking into account the survival probability of the formed resonant state of N O 2 − , the cross section for dissociative electron attachment to NO 2 is also estimated. To compare with available experimental data, the theoretical cross section is convoluted with energy distribution of NO 2 –e − collisions with uncertainties reported in experimental studies. Peak values of the convoluted theoretical cross section are found to be about a factor of 2–10 larger than the experimental results.
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Dates et versions

hal-04454814 , version 1 (13-02-2024)

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Citer

Hainan Liu, Xianwu Jiang, Chi-Hong Yuen, Viatcheslav Kokoouline, Mehdi Ayouz. Formation of negative-ion resonance and dissociative attachment in collisions of NO 2 with electrons. Journal of Physics B: Atomic, Molecular and Optical Physics, 2021, 54 (18), pp.185201. ⟨10.1088/1361-6455/ac2c8b⟩. ⟨hal-04454814⟩

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