Ultracold collisions of metastable helium atoms

Details Ultracold collisions of metastable helium atoms Ultracold collisions of metastable helium atoms

2000-11-29

arxiv.org/abs/physics/0011072v2

Phys. Rev. A 64, 042710 (2001)

Physics

Atomic Physics

20 pages, 8 figures, RevTeX, epsf. Small additions of text

Scientific paper

10.1103/PhysRevA.64.042710

We report scattering lengths for the singlet Sigma g +, triplet Sigma u + and quintet Sigma g + adiabatic molecular potentials relevant to collisions of two metastable (n=2 triplet S) 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.

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