{"title":"低能电子撞击氨中最低层三重激发展开的绝对截面","authors":"Masamitsu Hoshino , Akihiro Yodo , Paulo Limão-Vieira , Hiroshi Tanaka","doi":"10.1016/j.cplett.2024.141697","DOIUrl":null,"url":null,"abstract":"<div><div>We report the first quantitative differential and integral cross sections (DCSs and ICSs) for the unfolded lowest-lying triplet and singlet transitions near threshold energies in ammonia molecule by electron impact at 9.8, 12, and 15 eV for the scattering angles of 10° to 130°. The DCS are shown to be typical of forward scattering for the singlet and isotropic for the triplet transitions, respectively. Towards the threshold energy, the ICS for the singlet state exhibits a monotonically decreasing feature, whereas a sharp increase is expected for the triplet state, which are compared with the R-matrix calculations from the literature.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"857 ","pages":"Article 141697"},"PeriodicalIF":2.8000,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Absolute cross section for the unfolded lowest-lying triplet excitation in ammonia by low-energy electron impact\",\"authors\":\"Masamitsu Hoshino , Akihiro Yodo , Paulo Limão-Vieira , Hiroshi Tanaka\",\"doi\":\"10.1016/j.cplett.2024.141697\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We report the first quantitative differential and integral cross sections (DCSs and ICSs) for the unfolded lowest-lying triplet and singlet transitions near threshold energies in ammonia molecule by electron impact at 9.8, 12, and 15 eV for the scattering angles of 10° to 130°. The DCS are shown to be typical of forward scattering for the singlet and isotropic for the triplet transitions, respectively. Towards the threshold energy, the ICS for the singlet state exhibits a monotonically decreasing feature, whereas a sharp increase is expected for the triplet state, which are compared with the R-matrix calculations from the literature.</div></div>\",\"PeriodicalId\":273,\"journal\":{\"name\":\"Chemical Physics Letters\",\"volume\":\"857 \",\"pages\":\"Article 141697\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-10-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Physics Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0009261424006390\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics Letters","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0009261424006390","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Absolute cross section for the unfolded lowest-lying triplet excitation in ammonia by low-energy electron impact
We report the first quantitative differential and integral cross sections (DCSs and ICSs) for the unfolded lowest-lying triplet and singlet transitions near threshold energies in ammonia molecule by electron impact at 9.8, 12, and 15 eV for the scattering angles of 10° to 130°. The DCS are shown to be typical of forward scattering for the singlet and isotropic for the triplet transitions, respectively. Towards the threshold energy, the ICS for the singlet state exhibits a monotonically decreasing feature, whereas a sharp increase is expected for the triplet state, which are compared with the R-matrix calculations from the literature.
期刊介绍：
Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage.
Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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