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APS » Journals » Phys. Rev. Lett. » Volume 95 » Issue 22
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Phys. Rev. Lett. 95, 223002 (2005) [4 pages]

Spectroscopic Determination of the s-Wave Scattering Lengths of 86Sr and 88Sr

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P. G. Mickelson, Y. N. Martinez, A. D. Saenz, S. B. Nagel, Y. C. Chen, and T. C. Killian
Department of Physics and Astronomy, Rice University, Houston, Texas 77251, USA

P. Pellegrini and R. Côté
Department of Physics, U-3046, University of Connecticut, Storrs, Connecticut 06269-3046, USA

Received 1 April 2005; published 22 November 2005

We report the use of photoassociative spectroscopy to determine the ground-state s-wave scattering lengths for the main bosonic isotopes of strontium, 86Sr and 88Sr. Photoassociative transitions are driven with a laser red detuned by up to 1400 GHz from the 1S0-1P1 atomic resonance at 461 nm. A minimum in the transition amplitude for 86Sr at -494±5  GHz allows us to determine the scattering lengths 610a0<a86<2300a0 for 86Sr and a much smaller value of -1a0<a88<13a0 for 88Sr.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.223002
DOI:
10.1103/PhysRevLett.95.223002
PACS:
32.80.Pj
 
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