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Improved characterization of elastic scattering near a Feshbaeh resonance in 85Rb

    https://doi.org/10.1142/9789812813787_0082Cited by:0 (Source: Crossref)
    Abstract:

    We report extensions and corrections to the measurement of the Feshbaeh resonance in 85Rb cold atom collisions reported earlier [J. L. Roberts el al., Phys. Rev. Lett. 81, 5109 (1998)]. In addition to a better determination of the position of the resonance peak 154.9(4) Gl and its width [11.0(4) G], improvements in our techniques now allow the measurement of the absolute size of the classic-scattering rate. This provides a measure of the, s-wave scattering length as a function of magnetic field near the Feshbaeh resonance and constrains the Rb-Rb interaction potential.

    PACS: 34.50.−s, 03.75.Fi, 05.30. Jp, 32.80.Pj