Formation of negative-ion resonance and dissociative attachment in collisions of NO2 with electrons. (26th October 2021)

• Record Type: Journal Article
• Authors: Liu, Hainan; Jiang, Xianwu; Yuen, Chi-Hong; Kokoouline, Viatcheslav; Ayouz, Mehdi
• Is Part Of: Journal of physics. Volume 54:Number 18(2021)
• Publication Date: 2021-10-26
• Subjects: dissociative attachment -- NO2 molecule -- electron attachment -- R-matrix -- normal mode approximation; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/ac2c8b
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: The process of electron attachment to the NO2 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 NO2 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 NO2 is also estimated. To compare with available experimental data, the theoretical cross section is convoluted with energy distribution of NO2 –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.