Structure and resonances of the e+-He(1s2s 3Se) system

We have studied the geometry and resonances of the e+He(3Se) system in the framework of hyperspherical coordinates. A model potential proposed by us is used to describe the interaction between the out electron with the He+ ionic core. The calculated binding energy and expectation distance of the sys...

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Bibliographic Details
Published inJournal of physics. B, Atomic, molecular, and optical physics Vol. 45; no. 8; pp. 85002 - 85008
Main Authors Ren, Zhenzhong, Han, Huili, Shi, Tingyun, Mitroy, J
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 28.04.2012
Institute of Physics
Subjects
Atomic and molecular collision processes and interactions
Atomic and molecular physics
Exact sciences and technology
Physics
Positron scattering
positron-atom collision
resonances
Helium Atoms
Hyperspherical coordinate
Positron-atom collisions
Model potential
Binding energy
ps range
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Summary:We have studied the geometry and resonances of the e+He(3Se) system in the framework of hyperspherical coordinates. A model potential proposed by us is used to describe the interaction between the out electron with the He+ ionic core. The calculated binding energy and expectation distance of the system are in agreement with other calculations. In addition, two resonances below the e+-He(1s3s 3Se) threshold and one resonance below the Ps(n=2)-He+ threshold are identified.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/45/8/085002