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Title: Absolute single photoionization cross-section measurements of Rb 2+ ions: experiment and theory

Journal Article · · Journal of Physics. B, Atomic, Molecular and Optical Physics
 [1];  [1];  [1];  [2];  [2];  [3];  [4];  [5];  [5]
  1. Univ. of Montana, Missoula, MT (United States). Dept. of Physics and Astronomy
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Univ. of Connecticut, Storrs, CT (United States). Dept. of Physics
  4. Western Michigan Univ., Kalamazoo MI (United States). Dept. of Physics
  5. Univ. of West Georgia, Carrolton, GA (United States). Dept. of Physics

Absolute single photoionization cross-section measurements of Rb 2+ ions were performed at the Advanced Light Source at Lawrence Berkeley National Laboratory using synchrotron radiation and the photo-ion, merged-beams technique. Measurements were made at a photon energy resolution of 13.5 2.5 meV from 37.31 to 44.08 eV spanning the 2 P ground state and 2 P metastable state ionization thresholds. Multiple autoionizing resonance series arising from each initial state are identified using quantum defect theory. The measurements are compared to Breit-Pauli R-matrix calculations with excellent agreement between theory and experiment.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1378327
Journal Information:
Journal of Physics. B, Atomic, Molecular and Optical Physics, Vol. 49, Issue 23; Related Information: A corrigendum for this article has been published in 2017 J. Phys. B: At. Mol. Opt. Phys. 50 119501; ISSN 0953-4075
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English

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