Electron-impact ionization of the metastable excited states of Li +

J. C. Berengut; S. D. Loch; C. P. Ballance; M. S. Pindzola

doi:10.1088/0953-4075/40/7/002

Electron-impact ionization of the metastable excited states of Li +

J. C. Berengut, S. D. Loch, C. P. Ballance, M. S. Pindzola

School of Mathematics and Physics

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

5 Citations (Scopus)

Abstract

Electron-impact ionization cross sections for the 1s2s 1S and 1s2s 3S metastable states of Li+ are calculated using both perturbative distorted-wave and non-perturbative close-coupling methods. Term-resolved distorted-wave calculations are found to be approximately 15% above term-resolved R-matrix with pseudostates calculations. On the other hand, configuration-average time-dependent close-coupling calculations are found to be in excellent agreement with the configuration-average R-matrix with pseudostates calculations. The non-perturbative R-matrix and close-coupling calculations provide a benchmark for experimental studies of electron-impact ionization of metastable states along the He isoelectronic sequence.

Original language	English
Pages (from-to)	1331-1336
Number of pages	6
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	40
Issue number	7
DOIs	https://doi.org/10.1088/0953-4075/40/7/002
Publication status	Published - 14 Apr 2007

Keywords

Atomic Physics

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10.1088/0953-4075/40/7/002

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title = "Electron-impact ionization of the metastable excited states of Li +",

abstract = "Electron-impact ionization cross sections for the 1s2s 1S and 1s2s 3S metastable states of Li+ are calculated using both perturbative distorted-wave and non-perturbative close-coupling methods. Term-resolved distorted-wave calculations are found to be approximately 15% above term-resolved R-matrix with pseudostates calculations. On the other hand, configuration-average time-dependent close-coupling calculations are found to be in excellent agreement with the configuration-average R-matrix with pseudostates calculations. The non-perturbative R-matrix and close-coupling calculations provide a benchmark for experimental studies of electron-impact ionization of metastable states along the He isoelectronic sequence.",

keywords = "Atomic Physics",

author = "Berengut, {J. C.} and Loch, {S. D.} and Ballance, {C. P.} and Pindzola, {M. S.}",

year = "2007",

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doi = "10.1088/0953-4075/40/7/002",

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TY - JOUR

T1 - Electron-impact ionization of the metastable excited states of Li +

AU - Berengut, J. C.

AU - Loch, S. D.

AU - Ballance, C. P.

AU - Pindzola, M. S.

PY - 2007/4/14

Y1 - 2007/4/14

N2 - Electron-impact ionization cross sections for the 1s2s 1S and 1s2s 3S metastable states of Li+ are calculated using both perturbative distorted-wave and non-perturbative close-coupling methods. Term-resolved distorted-wave calculations are found to be approximately 15% above term-resolved R-matrix with pseudostates calculations. On the other hand, configuration-average time-dependent close-coupling calculations are found to be in excellent agreement with the configuration-average R-matrix with pseudostates calculations. The non-perturbative R-matrix and close-coupling calculations provide a benchmark for experimental studies of electron-impact ionization of metastable states along the He isoelectronic sequence.

AB - Electron-impact ionization cross sections for the 1s2s 1S and 1s2s 3S metastable states of Li+ are calculated using both perturbative distorted-wave and non-perturbative close-coupling methods. Term-resolved distorted-wave calculations are found to be approximately 15% above term-resolved R-matrix with pseudostates calculations. On the other hand, configuration-average time-dependent close-coupling calculations are found to be in excellent agreement with the configuration-average R-matrix with pseudostates calculations. The non-perturbative R-matrix and close-coupling calculations provide a benchmark for experimental studies of electron-impact ionization of metastable states along the He isoelectronic sequence.

KW - Atomic Physics

U2 - 10.1088/0953-4075/40/7/002

DO - 10.1088/0953-4075/40/7/002

M3 - Article

SN - 0953-4075

VL - 40

SP - 1331

EP - 1336

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 7

ER -

Electron-impact ionization of the metastable excited states of Li +

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