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Phys. Rev. A 64, 042710 (2001) [8 pages]

Ultracold collisions of metastable helium atoms

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P. J. Leo
Atomic Physics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899

V. Venturi* and I. B. Whittingham
School of Mathematical and Physical Sciences, James Cook University, Townsville 4811, Australia

J. F. Babb
Institute for Theoretical Atomic and Molecular Physics, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138

Received 21 November 2000; published 13 September 2001

We report scattering lengths for the 1Σg+, 3Σu+, and 5Σg+ adiabatic molecular potentials relevant to collisions of two metastable 23S helium atoms as a function of the uncertainty in these potentials. These scattering lengths are used to calculate experimentally observable scattering lengths, elastic cross sections, and inelastic rates for any combination of states of the colliding atoms, at temperatures where the Wigner threshold approximation is valid.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.042710
DOI:
10.1103/PhysRevA.64.042710
PACS:
32.80.Dz, 03.75.Fi, 32.10.Hq

*Present address: Department of Computing Science, Glasgow University, Glasgow G12 8QQ, U.K.

 
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