Theoretical resonant electron-impact vibrational excitation, dissociative recombination and dissociative excitation cross sections of ro-vibrationally excited BeH+ ion. (24th February 2017)

• Record Type: Journal Article
• Authors: Laporta, V; Chakrabarti, K; Celiberto, R; Janev, R K; Mezei, J Zs; Niyonzima, S; Tennyson, J; Schneider, I F
• Is Part Of: Plasma physics and controlled fusion. Volume 59:Number 4(2017:Apr.)
• Publication Date: 2017-02-24
• Subjects: plasma fusion -- beryllium -- electron cross sections; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/aa5c56
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: A theoretical study of resonant vibrational excitation, dissociative recombination and dissociative excitation processes of the beryllium monohydride cation, BeH +, induced by electron impact, is reported. Full sets of ro-vibrationally-resolved cross sections and of the corresponding Maxwellian rate coefficients are presented for the three processes. Particular emphasis is given to the high-energy behaviour. Potential curves of 2 Σ +, 2 Π and 2 Δ symmetries and the corresponding resonance widths, obtained from R -matrix calculations, provide the input for calculations which use a local complex-potential model for resonant collisions in each of the three symmetries. Rotational motion of nuclei and isotopic effects are also discussed. The relevant results are compared with those obtained using a multichannel quantum defect theory method. Full results are available from the Phys4Entry database.