Spectroscopy of 215Ra: the shell model and enhanced E3 transitions: The shell model and enhanced E3 transitions

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/S0375-9474(98)00484-9

Spectroscopy of ²¹⁵Ra: the shell model and enhanced E3 transitions: The shell model and enhanced E3 transitions

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

12 Citations (Scopus)

Abstract

Excited states in the N = 127 nucleus ²¹⁵Ra have been studied using γ-ray and electron spectroscopy following reactions of ¹³C on ²⁰⁶Pb targets. Levels were identified up to spins of ∼ 61/2 and excitation energies of ∼ 6 MeV. Enhanced octupole transitions are a feature of the level scheme. Lifetimes and magnetic moments were measured for several isomeric levels. The level scheme, transition rates and magnetic moments are compared with empirical shell model calculations and multiparticle octupole-coupled shell model calculations. In general, the experimental data are well described, but in comparison with its success in describing enhanced E3 transitions between related states in the radon isotopes, some limitations of the multiparticle octupole-coupling approach are revealed in ²¹⁵Ra.

Original language	English
Pages (from-to)	401-429
Number of pages	29
Journal	Nuclear Physics A
Volume	641
Issue number	4
DOIs	https://doi.org/10.1016/S0375-9474(98)00484-9
Publication status	Published - 26 Oct 1998

Access to Document

10.1016/S0375-9474(98)00484-9

Cite this

@article{cf8d2b5a919c4b958573fa84039c1856,

title = "Spectroscopy of 215Ra: the shell model and enhanced E3 transitions: The shell model and enhanced E3 transitions",

abstract = "Excited states in the N = 127 nucleus 215Ra have been studied using γ-ray and electron spectroscopy following reactions of 13C on 206Pb targets. Levels were identified up to spins of ∼ 61/2 and excitation energies of ∼ 6 MeV. Enhanced octupole transitions are a feature of the level scheme. Lifetimes and magnetic moments were measured for several isomeric levels. The level scheme, transition rates and magnetic moments are compared with empirical shell model calculations and multiparticle octupole-coupled shell model calculations. In general, the experimental data are well described, but in comparison with its success in describing enhanced E3 transitions between related states in the radon isotopes, some limitations of the multiparticle octupole-coupling approach are revealed in 215Ra.",

keywords = "Nuclear reactions Pb(C,4n)Ra, E = 66-84 MeV",

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 = "1998",

month = oct,

day = "26",

doi = "10.1016/S0375-9474(98)00484-9",

language = "English",

volume = "641",

pages = "401--429",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

number = "4",

}

TY - JOUR

T1 - Spectroscopy of 215Ra: the shell model and enhanced E3 transitions

T2 - The shell model and enhanced E3 transitions

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 - 1998/10/26

Y1 - 1998/10/26

N2 - Excited states in the N = 127 nucleus 215Ra have been studied using γ-ray and electron spectroscopy following reactions of 13C on 206Pb targets. Levels were identified up to spins of ∼ 61/2 and excitation energies of ∼ 6 MeV. Enhanced octupole transitions are a feature of the level scheme. Lifetimes and magnetic moments were measured for several isomeric levels. The level scheme, transition rates and magnetic moments are compared with empirical shell model calculations and multiparticle octupole-coupled shell model calculations. In general, the experimental data are well described, but in comparison with its success in describing enhanced E3 transitions between related states in the radon isotopes, some limitations of the multiparticle octupole-coupling approach are revealed in 215Ra.

AB - Excited states in the N = 127 nucleus 215Ra have been studied using γ-ray and electron spectroscopy following reactions of 13C on 206Pb targets. Levels were identified up to spins of ∼ 61/2 and excitation energies of ∼ 6 MeV. Enhanced octupole transitions are a feature of the level scheme. Lifetimes and magnetic moments were measured for several isomeric levels. The level scheme, transition rates and magnetic moments are compared with empirical shell model calculations and multiparticle octupole-coupled shell model calculations. In general, the experimental data are well described, but in comparison with its success in describing enhanced E3 transitions between related states in the radon isotopes, some limitations of the multiparticle octupole-coupling approach are revealed in 215Ra.

KW - Nuclear reactions Pb(C,4n)Ra, E = 66-84 MeV

UR - http://www.scopus.com/inward/record.url?scp=0032569569&partnerID=8YFLogxK

U2 - 10.1016/S0375-9474(98)00484-9

DO - 10.1016/S0375-9474(98)00484-9

M3 - Article

SN - 0375-9474

VL - 641

SP - 401

EP - 429

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 4

ER -

Spectroscopy of ²¹⁵Ra: the shell model and enhanced E3 transitions: The shell model and enhanced E3 transitions

Abstract

Access to Document

Other files and links

Fingerprint

Cite this