Phys. Rev. A 76, 052708 (2007) [9 pages]High-resolution velocity-map-imaging photoelectron spectroscopy of the O− photodetachment fine-structure transitionsReceived 11 July 2007; revised 20 September 2007; published 19 November 2007 A high-resolution photoelectron velocity-map-imaging study is reported for the photodetachment of the atomic oxygen anion at 532 nm, where five of the six possible spin-orbit fine-structure transitions have been resolved. A resolution of ΔE∕E=0.38% was achieved. Within the experimental uncertainty, each of the fine-structure transitions has the same anisotropy, the averaged β=−0.89(1) consistent with previous, fine-structure-unresolved, experimental and theoretical determinations. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.76.052708
DOI:
10.1103/PhysRevA.76.052708
PACS:
32.80.Gc
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