Triplet s-wave resonance in {sup 6}Li collisions and scattering lengths of {sup 6}Li and {sup 7}Li
- Physics Department and Rice Quantum Institute, Rice University, Houston, Texas 77251-1892 (United States)
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States)
The triplet s-wave scattering length of {sup 6}Li is determined using two-photon photoassociative spectroscopy of the diatomic a{sup 3}{Sigma}{sub u}{sup +} state of {sup 6}Li{sub 2}. The measured binding energy of the highest-lying bound state, combined with knowledge of the potential, determines the s-wave scattering length to be ({minus}2160{plus_minus}250)a{sub 0}, where a{sub 0} is the Bohr radius. This extraordinarily large scattering length signifies a near-threshold resonance. A complete table of singlet and triplet scattering lengths for collisions involving {sup 6}Li and {sup 7}Li determined from this and our previous spectroscopic investigations is given. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 496702
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 5 Vol. 55; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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