Wave-Function Reconstruction for the Determination of the Scattering Length of Sr
Masami Yasuda, Tetsuo Kishimoto, Masao Takamoto, Hidetoshi Katori
Abstract
We have investigated the photoassociation (PA) spectra of ultracold 88Sr atoms near the 5s2 1S0+5s5p 1P1 atomic asymptote. The intensity modulation of the PA lines was used to reconstruct the ground-state scattering wave function, whose nodal point inferred the s-wave scattering length of a=1.1(2) nm. The observed PA resonances also determined a precise lifetime of the 1P1 state to be 5.263(4) ns.
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