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van der Waals force between positronium and hydrogenic atoms Finite-mass correctionsThe Feshbach projection-operator formalism is used to derive the asymptotic effective interaction potential between two atoms. Beyond the usual van der Waals potential, falling like x exp -6, three x exp -8 terms are also obtained: an attractive dipole-quadrupole term (absent in the positronium-positronium case because of symmetry), a repulsive energy-dependent term, and a repulsive mass-dependent but energy-independent one. This last term was not obtained by Manson and Ritchie (1985) using an independent method.
Document ID
19860039359
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Au, C. K.
(South Carolina, University Columbia, United States)
Drachman, R. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
January 27, 1986
Publication Information
Publication: Physical Review Letters
Volume: 56
ISSN: 0031-9007
Subject Category
Atomic And Molecular Physics
Accession Number
86A24097
Funding Number(s)
CONTRACT_GRANT: NSF PHY-85-10642
CONTRACT_GRANT: NSF ISP-80-11451
Distribution Limits
Public
Copyright
Other

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