Upper bound to the ionization energy of 85Rb2

M. A. Bellos, R. Carollo, J. Banerjee, M. Ascoli, A.-R. Allouche, E. E. Eyler, P. L. Gould, and W. C. Stwalley
Phys. Rev. A 87, 012508 – Published 18 January 2013
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Abstract

We report an upper bound to the ionization energy of 85Rb2 of 31348.0(6) cm1, which also provides a lower bound to the dissociation energy D0 of 85Rb2+ of 6307.5(6) cm1. These bounds were measured by the onset of autoionization of the excited states of 85Rb2 below the 5s+7p atomic limit. We form 85Rb2 molecules via photoassociation of ultracold 85Rb atoms and subsequently excite the molecules by single-photon uv transitions to states above the ionization threshold.

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  • Received 11 December 2012

DOI:https://doi.org/10.1103/PhysRevA.87.012508

©2013 American Physical Society

Authors & Affiliations

M. A. Bellos1, R. Carollo1, J. Banerjee1, M. Ascoli1, A.-R. Allouche2, E. E. Eyler1, P. L. Gould1, and W. C. Stwalley1

  • 1Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
  • 2Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon 69622 Villeurbanne cedex, France

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Vol. 87, Iss. 1 — January 2013

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