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Title: Photoassociation spectroscopy of ultracold Cs below the 6P{sub 3/2} limit

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.1788657· OSTI ID:20658007
; ;  [1]
  1. Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)

High precision photoassociation spectroscopy is performed in ultracold cesium gas, with detunings as large as 51 cm-1 below the Cs(6S{sub 1/2})+Cs(6P{sub 3/2}) asymptote. Trap-loss fluorescence detection is used for detecting the photoassociation to excited state ultracold molecules. Long vibrational progressions are assigned to electronic states of 0{sub g}{sup -}, 0{sub u}{sup +}, and 1{sub g} symmetry. The spectral data are fitted to a LeRoy-Bernstein equation, in order to obtain the effective coefficients of the leading long-range interaction term (C{sub 3}/R{sup 3}) and the relative vibrational quantum numbers measured down from dissociation. Additionally we present evidence for perturbations between the 0{sub g}{sup -} state and the dark 2{sub u} state.

OSTI ID:
20658007
Journal Information:
Journal of Chemical Physics, Vol. 121, Issue 14; Other Information: DOI: 10.1063/1.1788657; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
Country of Publication:
United States
Language:
English