Effect of an external magnetic field on the determination of E1M1 two-photon decay rates in Be-like ions
(2013) In Physical Review A (Atomic, Molecular and Optical Physics) 88(2).- Abstract
- In this work we report on ab initio theoretical results for the magnetic-field-induced 2s 2p P-3(0) -> 2s(2) S-1(0) E1 transition for ions in the beryllium isoelectronic sequence between Z = 5 and 92. It has been proposed that the rate of the E1M1 two-photon transition 2s 2p P-3(0) -> 2s(2) S-1(0) can be extracted from the lifetime of the P-3(0) state in Be-like ions with zero nuclear spin by employing resonant recombination in a storage ring. This experimental approach involves a perturbing external magnetic field. The effect of this field needs to be evaluated in order to properly extract the two-photon rate from the measured decay curves. The magnetic-field-induced transition rates are carefully evaluated, and it is shown that,... (More)
- In this work we report on ab initio theoretical results for the magnetic-field-induced 2s 2p P-3(0) -> 2s(2) S-1(0) E1 transition for ions in the beryllium isoelectronic sequence between Z = 5 and 92. It has been proposed that the rate of the E1M1 two-photon transition 2s 2p P-3(0) -> 2s(2) S-1(0) can be extracted from the lifetime of the P-3(0) state in Be-like ions with zero nuclear spin by employing resonant recombination in a storage ring. This experimental approach involves a perturbing external magnetic field. The effect of this field needs to be evaluated in order to properly extract the two-photon rate from the measured decay curves. The magnetic-field-induced transition rates are carefully evaluated, and it is shown that, with a typical storage-ring field strength, it is dominant or of the same order as the E1M1 rate for low-and mid-Z ions. Results for several field strengths and ions are presented, and we also give a simple Z-dependent formula for the rate. We estimate the uncertainties of our model to be within 5% for low-and mid-Z ions and slightly larger for more highly charged ions. Furthermore we evaluate the importance of including both perturber states, P-3(1) and P-1(1), and it is shown that excluding the influence of the P-1(1) perturber overestimates the rate by up to 26% for the mid-Z ions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4062967
- author
- Grumer, Jon LU ; Li, Wenxian ; Bernhardt, Dietrich ; Li, Jiguang LU ; Schippers, Stefan ; Brage, Tomas LU ; Jonsson, Per ; Hutton, Roger and Zou, Yaming
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 88
- issue
- 2
- article number
- 022513
- publisher
- American Physical Society
- external identifiers
-
- wos:000323482300004
- scopus:84884834404
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.88.022513
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Science) (011040001), Physics, science (011013100)
- id
- 8685b699-65f9-4321-9966-570717b8106c (old id 4062967)
- date added to LUP
- 2016-04-01 10:55:06
- date last changed
- 2022-01-26 03:40:26
@article{8685b699-65f9-4321-9966-570717b8106c,
abstract = {{In this work we report on ab initio theoretical results for the magnetic-field-induced 2s 2p P-3(0) -> 2s(2) S-1(0) E1 transition for ions in the beryllium isoelectronic sequence between Z = 5 and 92. It has been proposed that the rate of the E1M1 two-photon transition 2s 2p P-3(0) -> 2s(2) S-1(0) can be extracted from the lifetime of the P-3(0) state in Be-like ions with zero nuclear spin by employing resonant recombination in a storage ring. This experimental approach involves a perturbing external magnetic field. The effect of this field needs to be evaluated in order to properly extract the two-photon rate from the measured decay curves. The magnetic-field-induced transition rates are carefully evaluated, and it is shown that, with a typical storage-ring field strength, it is dominant or of the same order as the E1M1 rate for low-and mid-Z ions. Results for several field strengths and ions are presented, and we also give a simple Z-dependent formula for the rate. We estimate the uncertainties of our model to be within 5% for low-and mid-Z ions and slightly larger for more highly charged ions. Furthermore we evaluate the importance of including both perturber states, P-3(1) and P-1(1), and it is shown that excluding the influence of the P-1(1) perturber overestimates the rate by up to 26% for the mid-Z ions.}},
author = {{Grumer, Jon and Li, Wenxian and Bernhardt, Dietrich and Li, Jiguang and Schippers, Stefan and Brage, Tomas and Jonsson, Per and Hutton, Roger and Zou, Yaming}},
issn = {{1050-2947}},
language = {{eng}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Effect of an external magnetic field on the determination of E1M1 two-photon decay rates in Be-like ions}},
url = {{http://dx.doi.org/10.1103/PhysRevA.88.022513}},
doi = {{10.1103/PhysRevA.88.022513}},
volume = {{88}},
year = {{2013}},
}