Spectroscopy and shell model interpretation of high-spin states in the N = 126 nucleus 214Ra

A. E. Stuchbery; G. D. Dracoulis; T. Kibédi; A. P. Byrne; B. Fabricius; A. R. Poletti; G. J. Lane; A. M. Baxter

doi:10.1016/0375-9474(92)90081-T

Spectroscopy and shell model interpretation of high-spin states in the N = 126 nucleus ²¹⁴Ra

A. E. Stuchbery^*, G. D. Dracoulis, T. Kibédi, A. P. Byrne, B. Fabricius, A. R. Poletti, G. J. Lane, A. M. Baxter

^*Corresponding author for this work

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

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Abstract

Excited states in the N = 126 nucleus ²¹⁴Ra have been studied using γ-ray and electron spectroscopy following reactions of ¹²C and ¹³C on ²⁰⁶Pb targets. Levels were identified to spins of ∼ 25 h{stroke} and excitation energies of ∼ 7.8 MeV. Lifetimes and magnetic moments were measured for several levels, including a spin (25^-) core-excited isomer at 6577.0 keV with τ = 184 ± 5 ns and g = 0.66 ± 0.01. The level scheme, lifetime and magnetic moment data are compared with, and discussed in terms of, empirical shell-model calculations and multiparticle octupole-coupled shell-model calculations. In general, the experimental data are well described by the empirical shell model.

Original language	English
Pages (from-to)	159-188
Number of pages	30
Journal	Nuclear Physics, Section A
Volume	548
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(92)90081-T
Publication status	Published - 5 Oct 1992

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title = "Spectroscopy and shell model interpretation of high-spin states in the N = 126 nucleus 214Ra",

abstract = "Excited states in the N = 126 nucleus 214Ra have been studied using γ-ray and electron spectroscopy following reactions of 12C and 13C on 206Pb targets. Levels were identified to spins of ∼ 25 h{stroke} and excitation energies of ∼ 7.8 MeV. Lifetimes and magnetic moments were measured for several levels, including a spin (25-) core-excited isomer at 6577.0 keV with τ = 184 ± 5 ns and g = 0.66 ± 0.01. The level scheme, lifetime and magnetic moment data are compared with, and discussed in terms of, empirical shell-model calculations and multiparticle octupole-coupled shell-model calculations. In general, the experimental data are well described by the empirical shell model.",

keywords = "Nuclear Reactions",

author = "Stuchbery, {A. E.} and Dracoulis, {G. D.} and T. Kib{\'e}di and Byrne, {A. P.} and B. Fabricius and Poletti, {A. R.} and Lane, {G. J.} and Baxter, {A. M.}",

year = "1992",

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doi = "10.1016/0375-9474(92)90081-T",

language = "English",

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journal = "Nuclear Physics, Section A",

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TY - JOUR

T1 - Spectroscopy and shell model interpretation of high-spin states in the N = 126 nucleus 214Ra

AU - Stuchbery, A. E.

AU - Dracoulis, G. D.

AU - Kibédi, T.

AU - Byrne, A. P.

AU - Fabricius, B.

AU - Poletti, A. R.

AU - Lane, G. J.

AU - Baxter, A. M.

PY - 1992/10/5

Y1 - 1992/10/5

N2 - Excited states in the N = 126 nucleus 214Ra have been studied using γ-ray and electron spectroscopy following reactions of 12C and 13C on 206Pb targets. Levels were identified to spins of ∼ 25 h{stroke} and excitation energies of ∼ 7.8 MeV. Lifetimes and magnetic moments were measured for several levels, including a spin (25-) core-excited isomer at 6577.0 keV with τ = 184 ± 5 ns and g = 0.66 ± 0.01. The level scheme, lifetime and magnetic moment data are compared with, and discussed in terms of, empirical shell-model calculations and multiparticle octupole-coupled shell-model calculations. In general, the experimental data are well described by the empirical shell model.

AB - Excited states in the N = 126 nucleus 214Ra have been studied using γ-ray and electron spectroscopy following reactions of 12C and 13C on 206Pb targets. Levels were identified to spins of ∼ 25 h{stroke} and excitation energies of ∼ 7.8 MeV. Lifetimes and magnetic moments were measured for several levels, including a spin (25-) core-excited isomer at 6577.0 keV with τ = 184 ± 5 ns and g = 0.66 ± 0.01. The level scheme, lifetime and magnetic moment data are compared with, and discussed in terms of, empirical shell-model calculations and multiparticle octupole-coupled shell-model calculations. In general, the experimental data are well described by the empirical shell model.

KW - Nuclear Reactions

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U2 - 10.1016/0375-9474(92)90081-T

DO - 10.1016/0375-9474(92)90081-T

M3 - Article

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SN - 0375-9474

VL - 548

SP - 159

EP - 188

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 1

ER -

Spectroscopy and shell model interpretation of high-spin states in the N = 126 nucleus ²¹⁴Ra

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