Electromagnetic properties of pseudo-Nilsson bands in 185Os

C. Wheldon; A. E. Stuchbery; A. N. Wilson; G. D. Dracoulis; A. M. Bruce; R. A. Bark; A. P. Byrne; F. M. Prados-Estevez; G. J. Lane; C. B. Moon; J. N. Orce; R. Wood

doi:10.1140/epja/i2003-10131-2

Electromagnetic properties of pseudo-Nilsson bands in ¹⁸⁵Os

C. Wheldon^*, A. E. Stuchbery, A. N. Wilson, G. D. Dracoulis, A. M. Bruce, R. A. Bark, A. P. Byrne, F. M. Prados-Estevez, G. J. Lane, C. B. Moon, J. N. Orce, R. Wood

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

New data have been obtained for ¹⁸⁵Os following the ¹⁷⁶Yb(¹³C,4n)¹⁸⁵Os reaction, extending the pseudo-Nilsson 1/2^-, 3/2^- [4̃1̃1̃] doublet structure and the 7/2^- [4̃0̃4̃] band to significantly higher spins. Gamma-ray branching ratio data have been analysed to obtain extensive B(M1) and B(E2) ratios for intraband and interband transitions. The data are compared with particle-rotor calculations based on the pseudo-Nilsson potential and the Woods-Saxon potential. The results indicate that the pseudo-Nilsson approximation provides a good description of the 1/2 ^-, 3/2^- [4̃1̃1̃] bands up to the first band crossing; the difference in magnitude between the model predictions and data for the 7/2^- [4̃0̃4̃] band may be attributed to a lower deformation for the higher-K structure.

Original language	English
Pages (from-to)	319-325
Number of pages	7
Journal	European Physical Journal A
Volume	19
Issue number	3
DOIs	https://doi.org/10.1140/epja/i2003-10131-2
Publication status	Published - Mar 2004

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@article{f8a214dffc204677a538c58a7ad5a8e9,

title = "Electromagnetic properties of pseudo-Nilsson bands in 185Os",

abstract = "New data have been obtained for 185Os following the 176Yb(13C,4n)185Os reaction, extending the pseudo-Nilsson 1/2-, 3/2- [{\~4}{\~1}{\~1}] doublet structure and the 7/2- [{\~4}{\~0}{\~4}] band to significantly higher spins. Gamma-ray branching ratio data have been analysed to obtain extensive B(M1) and B(E2) ratios for intraband and interband transitions. The data are compared with particle-rotor calculations based on the pseudo-Nilsson potential and the Woods-Saxon potential. The results indicate that the pseudo-Nilsson approximation provides a good description of the 1/2 -, 3/2- [{\~4}{\~1}{\~1}] bands up to the first band crossing; the difference in magnitude between the model predictions and data for the 7/2- [{\~4}{\~0}{\~4}] band may be attributed to a lower deformation for the higher-K structure.",

author = "C. Wheldon and Stuchbery, {A. E.} and Wilson, {A. N.} and Dracoulis, {G. D.} and Bruce, {A. M.} and Bark, {R. A.} and Byrne, {A. P.} and Prados-Estevez, {F. M.} and Lane, {G. J.} and Moon, {C. B.} and Orce, {J. N.} and R. Wood",

year = "2004",

month = mar,

doi = "10.1140/epja/i2003-10131-2",

language = "English",

volume = "19",

pages = "319--325",

journal = "European Physical Journal A",

issn = "1434-6001",

publisher = "Springer",

number = "3",

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TY - JOUR

T1 - Electromagnetic properties of pseudo-Nilsson bands in 185Os

AU - Wheldon, C.

AU - Stuchbery, A. E.

AU - Wilson, A. N.

AU - Dracoulis, G. D.

AU - Bruce, A. M.

AU - Bark, R. A.

AU - Byrne, A. P.

AU - Prados-Estevez, F. M.

AU - Lane, G. J.

AU - Moon, C. B.

AU - Orce, J. N.

AU - Wood, R.

PY - 2004/3

Y1 - 2004/3

N2 - New data have been obtained for 185Os following the 176Yb(13C,4n)185Os reaction, extending the pseudo-Nilsson 1/2-, 3/2- [4̃1̃1̃] doublet structure and the 7/2- [4̃0̃4̃] band to significantly higher spins. Gamma-ray branching ratio data have been analysed to obtain extensive B(M1) and B(E2) ratios for intraband and interband transitions. The data are compared with particle-rotor calculations based on the pseudo-Nilsson potential and the Woods-Saxon potential. The results indicate that the pseudo-Nilsson approximation provides a good description of the 1/2 -, 3/2- [4̃1̃1̃] bands up to the first band crossing; the difference in magnitude between the model predictions and data for the 7/2- [4̃0̃4̃] band may be attributed to a lower deformation for the higher-K structure.

AB - New data have been obtained for 185Os following the 176Yb(13C,4n)185Os reaction, extending the pseudo-Nilsson 1/2-, 3/2- [4̃1̃1̃] doublet structure and the 7/2- [4̃0̃4̃] band to significantly higher spins. Gamma-ray branching ratio data have been analysed to obtain extensive B(M1) and B(E2) ratios for intraband and interband transitions. The data are compared with particle-rotor calculations based on the pseudo-Nilsson potential and the Woods-Saxon potential. The results indicate that the pseudo-Nilsson approximation provides a good description of the 1/2 -, 3/2- [4̃1̃1̃] bands up to the first band crossing; the difference in magnitude between the model predictions and data for the 7/2- [4̃0̃4̃] band may be attributed to a lower deformation for the higher-K structure.

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U2 - 10.1140/epja/i2003-10131-2

DO - 10.1140/epja/i2003-10131-2

M3 - Article

SN - 1434-6001

VL - 19

SP - 319

EP - 325

JO - European Physical Journal A

JF - European Physical Journal A

IS - 3

ER -

Electromagnetic properties of pseudo-Nilsson bands in ¹⁸⁵Os

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