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Analysis of the competition between forbidden and hyperfine-induced transitions in Ne-like ions

Andersson, Martin LU ; Grumer, Jon LU ; Brage, Tomas LU ; Zou, Yaming and Hutton, Roger LU (2016) In Physical Review A (Atomic, Molecular and Optical Physics) 93(3).
Abstract

In this work we investigate the decay of the |2p53sP03) state in neon-like ions along the isoelectronic sequence ranging from Z=10 to Z=35. In the absence of a nuclear spin, the magnetic dipole transition to |2p53sP13) is the dominating decay channel. However, for isotopes with a nuclear spin, the interaction between the nuclear magnetic dipole moment and the electronic field introduces a mixing of |2p53sP13) and |P11) into the |P03) state, which in turn opens up a competing hyperfine-induced electric dipole decay channel to the ground state. This hyperfine-induced transition channel clearly dominates over the magnetic dipole channel for the neutral end of the isoelectronic sequence, when present. We give values for the rates of both... (More)

In this work we investigate the decay of the |2p53sP03) state in neon-like ions along the isoelectronic sequence ranging from Z=10 to Z=35. In the absence of a nuclear spin, the magnetic dipole transition to |2p53sP13) is the dominating decay channel. However, for isotopes with a nuclear spin, the interaction between the nuclear magnetic dipole moment and the electronic field introduces a mixing of |2p53sP13) and |P11) into the |P03) state, which in turn opens up a competing hyperfine-induced electric dipole decay channel to the ground state. This hyperfine-induced transition channel clearly dominates over the magnetic dipole channel for the neutral end of the isoelectronic sequence, when present. We give values for the rates of both these competing channels and discuss how the introduction of the hyperfine-induced transition channel could have a dramatic influence on the spectrum, not only because it introduces a new line, but also since it can substantially decrease the intensity of the magnetic dipole 2p53sP03→2p53sP13 line and affect the predicted ionization balance in different plasmas.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
93
issue
3
publisher
American Physical Society (APS)
external identifiers
  • Scopus:84961766066
  • WOS:000372398300006
ISSN
1050-2947
DOI
10.1103/PhysRevA.93.032506
language
English
LU publication?
yes
id
1636a38f-35d2-49b5-a7c5-8ed6e443d2d2
date added to LUP
2016-06-08 16:49:36
date last changed
2017-01-04 09:39:45
@article{1636a38f-35d2-49b5-a7c5-8ed6e443d2d2,
  abstract     = {<p>In this work we investigate the decay of the |2p53sP03) state in neon-like ions along the isoelectronic sequence ranging from Z=10 to Z=35. In the absence of a nuclear spin, the magnetic dipole transition to |2p53sP13) is the dominating decay channel. However, for isotopes with a nuclear spin, the interaction between the nuclear magnetic dipole moment and the electronic field introduces a mixing of |2p53sP13) and |P11) into the |P03) state, which in turn opens up a competing hyperfine-induced electric dipole decay channel to the ground state. This hyperfine-induced transition channel clearly dominates over the magnetic dipole channel for the neutral end of the isoelectronic sequence, when present. We give values for the rates of both these competing channels and discuss how the introduction of the hyperfine-induced transition channel could have a dramatic influence on the spectrum, not only because it introduces a new line, but also since it can substantially decrease the intensity of the magnetic dipole 2p53sP03→2p53sP13 line and affect the predicted ionization balance in different plasmas.</p>},
  articleno    = {032506},
  author       = {Andersson, Martin and Grumer, Jon and Brage, Tomas and Zou, Yaming and Hutton, Roger},
  issn         = {1050-2947},
  language     = {eng},
  month        = {03},
  number       = {3},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Analysis of the competition between forbidden and hyperfine-induced transitions in Ne-like ions},
  url          = {http://dx.doi.org/10.1103/PhysRevA.93.032506},
  volume       = {93},
  year         = {2016},
}