Photodetachment near a repulsive center

2013/08/16 by Baozhu Yang, B. C. Yang, Yang, B. C. +5
Medicine · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Ocular and Laser Science Research #physics.atom-ph

paper · pdf · doi:10.48550/arxiv.1308.3555

5 figures

arxiv created 2013/08/16 · openalex publication_date 2013/08/16 · arxiv updated 2013/08/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the total photodetachment cross section of H^- near a repulsive center. An analytical formula for the photodetachment cross section is obtained using the standard closed-orbit theory and extending it to the energy range below the zero-field threshold. The formula is found to be accurate by comparing with an exact quantum calculation. A comparison with the photodetachment cross section in an effective homogeneous electric field is made, and we discuss the similarities and differences of the two systems.

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