Enhanced E3 transitions and mixed configurations for core excited isomers in 210At and 211At

G. D. Dracoulis; C. A. Steed; A. P. Byrne; S. J. Poletti; A. E. Stuchbery; R. A. Bark

doi:10.1016/0375-9474(87)90406-4

Enhanced E3 transitions and mixed configurations for core excited isomers in ²¹⁰At and ²¹¹At

G. D. Dracoulis^*, C. A. Steed, A. P. Byrne, S. J. Poletti, A. E. Stuchbery, R. A. Bark

^*Corresponding author for this work

Department of Nuclear Physics & Accelerator Applications

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

24 Citations (Scopus)

Abstract

The lifetime and branching ratio of the 19⁺ isomer in ²¹⁰At have been measured. Its enhanced E3 decay and g-factor, and those of the related 39 2^- isomer in ²¹¹At are compared with the results of a semi-empirical shell model calculation which includes couplings to the 3^- octupole vibration, resulting in mixed configurations. Lifetimes were also obtained for the 15^- isomer in ²¹⁰At, and the 29 2⁺ isomer in ²⁰⁹At.

Original language	English
Pages (from-to)	576-586
Number of pages	11
Journal	Nuclear Physics, Section A
Volume	462
Issue number	3
DOIs	https://doi.org/10.1016/0375-9474(87)90406-4
Publication status	Published - 2 Feb 1987

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10.1016/0375-9474(87)90406-4

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title = "Enhanced E3 transitions and mixed configurations for core excited isomers in 210At and 211At",

abstract = "The lifetime and branching ratio of the 19+ isomer in 210At have been measured. Its enhanced E3 decay and g-factor, and those of the related 39 2- isomer in 211At are compared with the results of a semi-empirical shell model calculation which includes couplings to the 3- octupole vibration, resulting in mixed configurations. Lifetimes were also obtained for the 15- isomer in 210At, and the 29 2+ isomer in 209At.",

keywords = "Nuclear reactions",

author = "Dracoulis, {G. D.} and Steed, {C. A.} and Byrne, {A. P.} and Poletti, {S. J.} and Stuchbery, {A. E.} and Bark, {R. A.}",

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T1 - Enhanced E3 transitions and mixed configurations for core excited isomers in 210At and 211At

AU - Dracoulis, G. D.

AU - Steed, C. A.

AU - Byrne, A. P.

AU - Poletti, S. J.

AU - Stuchbery, A. E.

AU - Bark, R. A.

PY - 1987/2/2

Y1 - 1987/2/2

N2 - The lifetime and branching ratio of the 19+ isomer in 210At have been measured. Its enhanced E3 decay and g-factor, and those of the related 39 2- isomer in 211At are compared with the results of a semi-empirical shell model calculation which includes couplings to the 3- octupole vibration, resulting in mixed configurations. Lifetimes were also obtained for the 15- isomer in 210At, and the 29 2+ isomer in 209At.

AB - The lifetime and branching ratio of the 19+ isomer in 210At have been measured. Its enhanced E3 decay and g-factor, and those of the related 39 2- isomer in 211At are compared with the results of a semi-empirical shell model calculation which includes couplings to the 3- octupole vibration, resulting in mixed configurations. Lifetimes were also obtained for the 15- isomer in 210At, and the 29 2+ isomer in 209At.

KW - Nuclear reactions

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U2 - 10.1016/0375-9474(87)90406-4

DO - 10.1016/0375-9474(87)90406-4

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SP - 576

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JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 3

ER -

Enhanced E3 transitions and mixed configurations for core excited isomers in 210At and 211At

Abstract

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Enhanced E3 transitions and mixed configurations for core excited isomers in ²¹⁰At and ²¹¹At