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Second bound state of PsH

Mitroy, Jim and Bromley, Michael W. J. (2007). Second bound state of PsH. Physical Review Letters,98(6):63401-1-63401-4.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 6 times in Scopus Article | Citations

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IRMA ID 80791673xPUB62
Title Second bound state of PsH
Author Mitroy, Jim
Bromley, Michael W. J.
Journal Name Physical Review Letters
Publication Date 2007
Volume Number 98
Issue Number 6
ISSN 0031-9007   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-33846891280
Start Page 63401-1
End Page 63401-4
Total Pages 4
Place of Publication College Park, United States
Publisher American Physical Society
HERDC Category C1 - Journal Article (DEST)
Abstract The existence of a second bound state of PsH that is electronically stable and also stable against positron annihilation by the normal 2 gamma and 3 gamma processes is demonstrated by explicit calculation. The state can be found in the S-2,4(o) symmetries with the two electrons in a spin-triplet state. The binding energy against dissociation into the H(2p)+Ps(2p) channel was 7.03x10(-4) hartree. The dominant decay mode of the states will be radiative decay into a configuration that autoionizes or undergoes positron annihilation. The NaPs system of the same symmetry is also electronically stable with a binding energy of 1.514x10(-3) hartree with respect to the Na(3p)+Ps(2p) channel.
Keywords negative ion
positronium molecule
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Additional Notes Copyright by the American Physical Society

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