Yrast four-quasi-particle states in 182W

P. H. Regan; P. M. Walker; G. D. Dracoulis; S. S. Anderssen; A. P. Byrne; P. M. Davidson; T. Kibèdi; G. J. Lane; A. E. Stuchbery; K. C Yeung

doi:10.1016/0375-9474(94)90156-2

Yrast four-quasi-particle states in ¹⁸²W

P. H. Regan^*, P. M. Walker, G. D. Dracoulis, S. S. Anderssen, A. P. Byrne, P. M. Davidson, T. Kibèdi, G. J. Lane, A. E. Stuchbery, K. C Yeung

^*Corresponding author for this work

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

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Abstract

High-spin states of the stable isotope ¹⁸²W have been studied using the reactions ¹⁷⁶Yb(¹³C, α3n)¹⁸²W and ¹⁷⁶Yb(⁹Be, 3n)¹⁸²W at beam energies of 65 and 40 MeV, respectively. Three, possibly four, new intrinsic states at high spins have been observed corresponding to different high-K four-quasi-particle structures. The K^π = 15⁺ and 17^- levels have lifetimes of 78(15) and 25(10) ns, respectively. Rotational bands are observed built on the K^π = 16⁺ and 17^- yrast states. The coupling of Nilsson orbitals which give rise to high-K states at the yrast line and the K-forbiddenness of the K^π = 15 ⁺ isomeric decay are discussed.

Original language	English
Pages (from-to)	414-430
Number of pages	17
Journal	Nuclear Physics, Section A
Volume	567
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(94)90156-2
Publication status	Published - Jan 1994

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@article{99fb4e2afc7a4d05bda2e8ca2b29de88,

title = "Yrast four-quasi-particle states in 182W",

abstract = "High-spin states of the stable isotope 182W have been studied using the reactions 176Yb(13C, α3n)182W and 176Yb(9Be, 3n)182W at beam energies of 65 and 40 MeV, respectively. Three, possibly four, new intrinsic states at high spins have been observed corresponding to different high-K four-quasi-particle structures. The Kπ = 15+ and 17- levels have lifetimes of 78(15) and 25(10) ns, respectively. Rotational bands are observed built on the Kπ = 16+ and 17- yrast states. The coupling of Nilsson orbitals which give rise to high-K states at the yrast line and the K-forbiddenness of the Kπ = 15 + isomeric decay are discussed.",

keywords = "NUCLEAR REACTIONS",

author = "Regan, {P. H.} and Walker, {P. M.} and Dracoulis, {G. D.} and Anderssen, {S. S.} and Byrne, {A. P.} and Davidson, {P. M.} and T. Kib{\`e}di and Lane, {G. J.} and Stuchbery, {A. E.} and Yeung, {K. C}",

year = "1994",

month = jan,

doi = "10.1016/0375-9474(94)90156-2",

language = "English",

volume = "567",

pages = "414--430",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Yrast four-quasi-particle states in 182W

AU - Regan, P. H.

AU - Walker, P. M.

AU - Dracoulis, G. D.

AU - Anderssen, S. S.

AU - Byrne, A. P.

AU - Davidson, P. M.

AU - Kibèdi, T.

AU - Lane, G. J.

AU - Stuchbery, A. E.

AU - Yeung, K. C

PY - 1994/1

Y1 - 1994/1

N2 - High-spin states of the stable isotope 182W have been studied using the reactions 176Yb(13C, α3n)182W and 176Yb(9Be, 3n)182W at beam energies of 65 and 40 MeV, respectively. Three, possibly four, new intrinsic states at high spins have been observed corresponding to different high-K four-quasi-particle structures. The Kπ = 15+ and 17- levels have lifetimes of 78(15) and 25(10) ns, respectively. Rotational bands are observed built on the Kπ = 16+ and 17- yrast states. The coupling of Nilsson orbitals which give rise to high-K states at the yrast line and the K-forbiddenness of the Kπ = 15 + isomeric decay are discussed.

AB - High-spin states of the stable isotope 182W have been studied using the reactions 176Yb(13C, α3n)182W and 176Yb(9Be, 3n)182W at beam energies of 65 and 40 MeV, respectively. Three, possibly four, new intrinsic states at high spins have been observed corresponding to different high-K four-quasi-particle structures. The Kπ = 15+ and 17- levels have lifetimes of 78(15) and 25(10) ns, respectively. Rotational bands are observed built on the Kπ = 16+ and 17- yrast states. The coupling of Nilsson orbitals which give rise to high-K states at the yrast line and the K-forbiddenness of the Kπ = 15 + isomeric decay are discussed.

KW - NUCLEAR REACTIONS

UR - http://www.scopus.com/inward/record.url?scp=0001568069&partnerID=8YFLogxK

U2 - 10.1016/0375-9474(94)90156-2

DO - 10.1016/0375-9474(94)90156-2

M3 - Article

AN - SCOPUS:0001568069

SN - 0375-9474

VL - 567

SP - 414

EP - 430

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 2

ER -

Yrast four-quasi-particle states in ¹⁸²W

Abstract

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