Rigorous negative-ion binding energies in low-energy electron elastic collisions with heavy multi-electron atoms and fullerene molecules: validation of electron affinities

2022/12/26 by A. Z. Msezane, Msezane, Alfred Z., Z. Felfli +1
Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Ion-surface interactions and analysis #Metal and Thin Film Mechanics

paper · pdf · doi:10.48550/arxiv.2212.13286

openalex publication_date 2022/12/26 · openalex created_date 2023/01/06 · openalex updated_date 2026/07/28

Abstract

Dramatically sharp resonances manifesting stable negative-ion formation characterize Regge pole-calculated low-energy electron elastic total cross sections (TCSs) of heavy multi-electron systems. The novelty of the Regge pole analysis is in the extraction of rigorous and unambiguous negative-ion binding energies (BEs), corresponding to the measured electron affinities (EAs) of the investigated multi-electron systems. The measured EAs have engendered the crucial question: is the EA of multi-electron atoms and fullerene molecules identified with the BE of the attached electron in the ground, metastable or excited state of the formed negative-ion during collision? Inconsistencies in the meaning of the measured EAs are elucidated.

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