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Positron-atom complexes as quantum halo states

Mitroy, Jim (2005). Positron-atom complexes as quantum halo states. Physical Review Letters,94(3):33402-1-33402-4.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 14 times in Scopus Article | Citations

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IRMA ID 80791673xPUB56
Title Positron-atom complexes as quantum halo states
Author Mitroy, Jim
Journal Name Physical Review Letters
Publication Date 2005
Volume Number 94
Issue Number 3
ISSN 0031-9007   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-18044390671
Start Page 33402-1
End Page 33402-4
Total Pages 4
Place of Publication College Park, United States
Publisher American Physical Society
Field of Research MATHEMATICAL SCIENCES
PHYSICAL SCIENCES
ENGINEERING
HERDC Category C1 - Journal Article (DEST)
Abstract The wave functions of a number of positron-atom complexes are analyzed and three of the systems, namely, e(+)Be, e(+)Na, and e(+)He(S-3(e)), are seen to exhibit quantum halo structures with 45%-50% of their probability distribution lying in the large r classically forbidden region. The mean square distance between the large r fragments (e(+)+Be, Ps+Na+, Ps+He+) for these systems range from 1.8 to 2.2 times larger than the square of the classical turning point, another indication of their halolike nature.
Keywords binding-energy
ground-state
annihilation
molecules
potentials
stability
dynamics
helium
DOI http://dx.doi.org/10.1103/PhysRevLett.94.033402   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
Additional Notes Copyright by the The American Physical Society


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