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Vibrational-Resonance Enhancement of Positron Annihilation in Molecules

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Date

2002

Authors

Gilbert, Stephen J
Barnes, L D
Sullivan, James
Surko, Clifford M

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

A first study of positron annihilation as a function of positron energy was performed. The rate of annihilation of low-energy positrons in molecular gases was discussed. It was shown that the large observed values of annihilation rates are due to the excitation of long-lived vibrational resonances of the positron-molecule complex. The results are consistent with a theoretical model of resonant annihilation.

Description

Keywords

Keywords: Binding energy; Electron gas; Electron resonance; Electronic density of states; Electronic structure; Gamma rays; Magnetic fields; Mathematical models; Molecular physics; Molecular vibrations; Numerical analysis; Paraffins; Photodiodes; Potential energy;

Citation

URI

http://hdl.handle.net/1885/32029

Collections

Open Access Research

Source

Physical Review Letters

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

Restricted until

2037-12-31

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01_Gilbert_Vibrational-Resonance_2002.pdf (182.14 KB)

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