Electromagnetic Properties of Pseudo-Nilsson Bands in 185Os

C Wheldon; Andrew Stuchbery; Anna Wilson; George Dracoulis; A M Bruce; R A Bark; Aidan Byrne; Aidan Byrne; F M Prados-Estevez; Gregory Lane; C. Moon; J N Orce; R Wood

Electromagnetic Properties of Pseudo-Nilsson Bands in ¹⁸⁵Os

C Wheldon, Andrew Stuchbery, Anna Wilson, George Dracoulis, A M Bruce, R A Bark, Aidan Byrne, Aidan Byrne, F M Prados-Estevez, Gregory Lane, C. Moon, J N Orce, R Wood

Research output: Contribution to journal › Article

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.

Original language	English
Pages (from-to)	319-325
Journal	European Physical Journal A - Hadrons and Nuclei
Volume	19
Publication status	Published - 2004

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Cite this

@article{4c1270cab8894599921011a9113b51ab,

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 Andrew Stuchbery and Anna Wilson and George Dracoulis and Bruce, {A M} and Bark, {R A} and Aidan Byrne and Aidan Byrne and Prados-Estevez, {F M} and Gregory Lane and C. Moon and Orce, {J N} and R Wood",

year = "2004",

language = "English",

volume = "19",

pages = "319--325",

journal = "European Physical Journal A - Hadrons and Nuclei",

}

TY - JOUR

T1 - Electromagnetic Properties of Pseudo-Nilsson Bands in 185Os

AU - Wheldon, C

AU - Stuchbery, Andrew

AU - Wilson, Anna

AU - Dracoulis, George

AU - Bruce, A M

AU - Bark, R A

AU - Byrne, Aidan

AU - Prados-Estevez, F M

AU - Lane, Gregory

AU - Moon, C.

AU - Orce, J N

AU - Wood, R

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

M3 - Article

VL - 19

SP - 319

EP - 325

JO - European Physical Journal A - Hadrons and Nuclei

JF - European Physical Journal A - Hadrons and Nuclei

ER -

Electromagnetic Properties of Pseudo-Nilsson Bands in 185Os

Abstract

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Electromagnetic Properties of Pseudo-Nilsson Bands in ¹⁸⁵Os