Phys. Rev. Lett. 98, 103001 (2007) [4 pages]Excited States of the Helium-Antihydrogen SystemReceived 20 October 2006; published 5 March 2007 Potential energy curves for excited leptonic states of the helium-antihydrogen system are calculated within the Ritz variational approach. An explicitly correlated ansatz for the leptonic wave function is employed describing accurately the motion of the leptons (two electrons and positron) in the field of the helium nucleus and of the antiproton with an arbitrary orbital angular momentum projection Λ onto the internuclear axis. Results for Λ=0, 1, and 30 are presented. For quasibound states with large values of Λ and rotational quantum numbers J>Λ no annihilation and rearrangement decay channels occur; i.e., they are metastable. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.103001
DOI:
10.1103/PhysRevLett.98.103001
PACS:
31.50.Df, 31.15.−p, 36.10.−k
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