4.6 Article

Upper bound to the ionization energy of 85Rb2

Journal

PHYSICAL REVIEW A
Volume 87, Issue 1, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.87.012508

Keywords

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Funding

  1. NSF [PHY-0855613, PHY-1208317]
  2. AFOSR MURI [FA 9550-09-1-0588]
  3. University of Connecticut Research Foundation
  4. Direct For Mathematical & Physical Scien
  5. Division Of Physics [1208317, 0855613] Funding Source: National Science Foundation

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We report an upper bound to the ionization energy of Rb-85(2) of 31 348.0(6) cm(-1), which also provides a lower bound to the dissociation energy D-0 of Rb-85(2)+ of 6 307.5(6) cm(-1). These bounds were measured by the onset of autoionization of the excited states of Rb-85(2) below the 5s + 7p atomic limit. We form Rb-85(2) molecules via photoassociation of ultracold Rb-85 atoms and subsequently excite the molecules by single-photon uv transitions to states above the ionization threshold. DOI: 10.1103/PhysRevA.87.012508

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