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Decay pathways of superexcited states of nitrous oxide 被引量:1

Decay pathways of superexcited states of nitrous oxide
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摘要 The ionization and ionic dissociation of the superexcited state of N20 are studied by using electron energy loss spectroscopy and positive ion time-of-flight mass spectroscopy at different momentum transfers; that is, 0 and 0.23 a.u. (atomic unit) . The transitions at 13.8 eV and 14.0 eV are reassigned as 3pπ(000) and 3pσ(000) converging to A^2∑+, respectively. The competition between the main decay pathways of superexcited states at different momentum transfers is revealed. It is found that 3dσ converging to C^2∑+ mainly decays into N2O^+ while 4dσ can decay into both N2^O+ and NO^+. The ionization and ionic dissociation of the superexcited state of N20 are studied by using electron energy loss spectroscopy and positive ion time-of-flight mass spectroscopy at different momentum transfers; that is, 0 and 0.23 a.u. (atomic unit) . The transitions at 13.8 eV and 14.0 eV are reassigned as 3pπ(000) and 3pσ(000) converging to A^2∑+, respectively. The competition between the main decay pathways of superexcited states at different momentum transfers is revealed. It is found that 3dσ converging to C^2∑+ mainly decays into N2O^+ while 4dσ can decay into both N2^O+ and NO^+.
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第5期253-256,共4页 中国物理B(英文版)
基金 Project supported by the National Natural Science Foundation of China(Grants Nos.U1332204,11274291,and 11074299) the National Basic Research Program of China(Grant No.2010CB923301) the Specialized Research Fund for the Doctoral Program of Higher Education of China the Fundamental Research Funds for the Central Universities of Ministry of Education of China
关键词 ionization continuum superexcited states decay channel nitrous oxide ionization continuum, superexcited states, decay channel, nitrous oxide
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