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Phys. Rev. A 68, 022706 (2003) [6 pages]

Purely-long-range bound states of He(2s3S)+He(2p3P)

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V. Venturi, P. J. Leo, E. Tiesinga, and C. J. Williams
Atomic Physics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

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

Received 6 May 2003; published 14 August 2003

We predict the presence and positions of purely-long-range bound states of 4He(2s3S)+4He(2p3P) near the 2s3S1+2p3P0,1 atomic limits. The results of the full multichannel and approximate models are compared, and we assess the sensitivity of the bound states to atomic parameters characterizing the potentials. Photoassociation to these purely-long-range molecular bound states may improve the knowledge of the scattering length associated with the collisions of two ultracold spin-polarized 4He(2s3S) atoms, which is important for the studies of Bose-Einstein condensates.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.022706
DOI:
10.1103/PhysRevA.68.022706
PACS:
34.20.Cf, 33.80.Eh, 32.80.Pj