Triatomic Molecular Systems and Three-body forces: The Ar_3 case

Details Triatomic Molecular Systems and Three-body forces: The Ar_3 case Triatomic Molecular Systems and Three-body forces: The Ar_3 case

2004-10-05

arxiv.org/abs/physics/0410025v1

Physics

Atomic and Molecular Clusters

3 pages, Oral Contribution to the 19th European Few-Body Conference, Groningen Aug. 23-27, 2004

Scientific paper

10.1063/1.1932952

We performed bound state calculations to obtain the first few vibrational states for the Ar_3 molecular system. The equations used are of Faddeev-type and are solved directly as three-dimensional equations in configuration space, i.e. without resorting to an explicit partial wave decomposition. In addition to realistic pairwise interactions, we employ long range three-body forces. Our results are in good agreement with those obtained by other methods based on partial wave expansion and show a significant contribution of the three-body forces (>10%) to the binding energy and thus their inclusion is, in general, warranted in studying similar triatomic systems.

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