High-spin bandcrossing in 129Ba

A. P. Byrne; K. J Schiffer; G. D. Dracoulis; B. Fabricius; T. Kibédi; A. E. Stuchbery; K. P Lieb

doi:10.1016/0375-9474(92)90080-4

High-spin bandcrossing in ¹²⁹Ba

A. P. Byrne^*, K. J Schiffer, G. D. Dracoulis, B. Fabricius, T. Kibédi, A. E. Stuchbery, K. P Lieb

^*Corresponding author for this work

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

28 Citations (Scopus)

Abstract

The high-spin structure of ¹²⁹Ba was investigated via in-beam γ-ray spectroscopy allowing many new transitions to be placed in the level scheme. Two isometric states with lifetimes of τ = 23 (2) ns (182 keV level) and 68 (2) ns (2463 keV level) were identified. A high-K 3-quasineutron configuration [ 7 2⁺[404]⊗ 7 2^-[523]⊗ 9 2^-[514]] is proposed for the latter. A discussion of the high-spin structure and the deformation driving effects in ¹²⁹Ba is presented in terms of the cranked shell model. The conclusion reached is that the alignment gains are dominated by h_{11 2} proton pairs.

Original language	English
Pages (from-to)	131-158
Number of pages	28
Journal	Nuclear Physics, Section A
Volume	548
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(92)90080-4
Publication status	Published - 5 Oct 1992

Access to Document

10.1016/0375-9474(92)90080-4

Cite this

@article{ad001ceb1b5244ffa423db4cc04c5673,

title = "High-spin bandcrossing in 129Ba",

abstract = "The high-spin structure of 129Ba was investigated via in-beam γ-ray spectroscopy allowing many new transitions to be placed in the level scheme. Two isometric states with lifetimes of τ = 23 (2) ns (182 keV level) and 68 (2) ns (2463 keV level) were identified. A high-K 3-quasineutron configuration [ 7 2+[404]⊗ 7 2-[523]⊗ 9 2-[514]] is proposed for the latter. A discussion of the high-spin structure and the deformation driving effects in 129Ba is presented in terms of the cranked shell model. The conclusion reached is that the alignment gains are dominated by h 11 2 proton pairs.",

keywords = "Nuclear reactions",

author = "Byrne, {A. P.} and Schiffer, {K. J} and Dracoulis, {G. D.} and B. Fabricius and T. Kib{\'e}di and Stuchbery, {A. E.} and Lieb, {K. P}",

year = "1992",

month = oct,

day = "5",

doi = "10.1016/0375-9474(92)90080-4",

language = "English",

volume = "548",

pages = "131--158",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - High-spin bandcrossing in 129Ba

AU - Byrne, A. P.

AU - Schiffer, K. J

AU - Dracoulis, G. D.

AU - Fabricius, B.

AU - Kibédi, T.

AU - Stuchbery, A. E.

AU - Lieb, K. P

PY - 1992/10/5

Y1 - 1992/10/5

N2 - The high-spin structure of 129Ba was investigated via in-beam γ-ray spectroscopy allowing many new transitions to be placed in the level scheme. Two isometric states with lifetimes of τ = 23 (2) ns (182 keV level) and 68 (2) ns (2463 keV level) were identified. A high-K 3-quasineutron configuration [ 7 2+[404]⊗ 7 2-[523]⊗ 9 2-[514]] is proposed for the latter. A discussion of the high-spin structure and the deformation driving effects in 129Ba is presented in terms of the cranked shell model. The conclusion reached is that the alignment gains are dominated by h 11 2 proton pairs.

AB - The high-spin structure of 129Ba was investigated via in-beam γ-ray spectroscopy allowing many new transitions to be placed in the level scheme. Two isometric states with lifetimes of τ = 23 (2) ns (182 keV level) and 68 (2) ns (2463 keV level) were identified. A high-K 3-quasineutron configuration [ 7 2+[404]⊗ 7 2-[523]⊗ 9 2-[514]] is proposed for the latter. A discussion of the high-spin structure and the deformation driving effects in 129Ba is presented in terms of the cranked shell model. The conclusion reached is that the alignment gains are dominated by h 11 2 proton pairs.

KW - Nuclear reactions

UR - http://www.scopus.com/inward/record.url?scp=0001668958&partnerID=8YFLogxK

U2 - 10.1016/0375-9474(92)90080-4

DO - 10.1016/0375-9474(92)90080-4

M3 - Article

AN - SCOPUS:0001668958

SN - 0375-9474

VL - 548

SP - 131

EP - 158

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 1

ER -

High-spin bandcrossing in ¹²⁹Ba

Abstract

Access to Document

Other files and links

Fingerprint

Cite this