Vibrational-resonance enhancement of positron annihilation in molecules

S. J. Gilbert; L. D. Barnes; J. P. Sullivan; C. M. Surko

Vibrational-resonance enhancement of positron annihilation in molecules

S. J. Gilbert^*
, L. D. Barnes
, J. P. Sullivan
, C. M. Surko

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

140 Citations (Scopus)

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.

Original language	English
Article number	043201
Pages (from-to)	432011-432014
Number of pages	4
Journal	Physical Review Letters
Volume	88
Issue number	4
Publication status	Published - 28 Jan 2002
Externally published	Yes

Cite this

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title = "Vibrational-resonance enhancement of positron annihilation in molecules",

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.",

author = "Gilbert, \{S. J.\} and Barnes, \{L. D.\} and Sullivan, \{J. P.\} and Surko, \{C. M.\}",

year = "2002",

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T1 - Vibrational-resonance enhancement of positron annihilation in molecules

AU - Gilbert, S. J.

AU - Barnes, L. D.

AU - Sullivan, J. P.

AU - Surko, C. M.

PY - 2002/1/28

Y1 - 2002/1/28

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0037185574

M3 - Article

SN - 0031-9007

VL - 88

SP - 432011

EP - 432014

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 043201

ER -

Vibrational-resonance enhancement of positron annihilation in molecules

Abstract

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Cite this