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arXiv · 1706.04832

Single photoionization of the Zn II ion in the photon energy range 17.5 to 90.0 eV: experiment and theory

G. Hinojosa·V. T. Davis·A. M. Covington·J. S. Thompson·A. L. D. Kilcoyne·A. Antillón·E. M. Hernández·D. Calabrese·A. Morales-Mori·A. M. Juárez·O. Windelius·B. M. McLaughlin
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Abstract

Measurements of the single photoionization cross section of Cu-like Zn$^+$ ions are reported in the energy (wavelength) range 17.5 eV (709 \AA) to 90 eV (138 \AA). The measurements on this {\it trans}-Fe element were performed at the Advanced Light Source synchrotron radiation facility in Berkeley, California at a photon energy resolution of 17 meV using the photon-ion merged-beams end-station. Below 30 eV the spectrum is dominated by excitation autoionizing resonance states. The experimental results are compared with large-scale photoionization cross-section calculations performed using a Dirac-Coulomb $R$-matrix approximation. Comparison are made with previous experimental studies, resonance states are identified and contributions from metastable states of Zn$^+$ determined.

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G. Hinojosa, V. T. Davis, A. M. Covington, J. S. Thompson, A. L. D. Kilcoyne, A. Antillón, E. M. Hernández, D. Calabrese, A. Morales-Mori, A. M. Juárez, O. Windelius, B. M. McLaughlin. 2017-06-14. Single photoionization of the Zn II ion in the photon energy range 17.5 to 90.0 eV: experiment and theory. https://doi.org/10.1093/mnras/stx1534

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