Shape coexistence and high-K states in 74Se populated following the β decay of 74Br

被引：9

作者：

McCutchan, E. A. ^{[1
,2
]}

Lister, C. J. ^{[1
,3
]}

Ahn, T. ^{[4
]}

Anagnostatou, V. ^{[4
,5
]}

Cooper, N. ^{[4
]}

Elvers, M. ^{[4
,6
]}

Goddard, P. ^{[4
,5
]}

Heinz, A. ^{[4
]}

Ilie, G. ^{[4
,7
]}

Radeck, D. ^{[4
,6
]}

Savran, D. ^{[4
,8
,9
]}

Werner, V. ^{[4
]}

机构：

[1] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

[2] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA

[3] Univ Massachusetts Lowell, Dept Phys & Appl Phys, Lowell, MA 01854 USA

[4] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA

[5] Univ Surrey, Dept Nucl Phys, Guildford GU2 7XH, Surrey, England

[6] Univ Cologne, Inst Kernphys, DE-50937 Cologne, Germany

[7] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[8] Helmholtzzentrum, GSI, ExtreMe Matter Inst EMMI, Darmstadt, Germany

[9] Helmholtzzentrum, GSI, Div Res, Darmstadt, Germany

来源：

PHYSICAL REVIEW C | 2013年 / 87卷 / 01期

关键词：

NUCLEAR-DATA SHEETS; IN-BEAM; LIFE;

D O I：

10.1103/PhysRevC.87.014307

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Excited states in Se-74 were populated following the epsilon/beta(+) decay of Br-74, mainly from the J = K = 4, 13.8-keV beta-decaying isomer. Off-beam gamma-ray spectroscopy was performed with the array of Clover HPGe detectors at WNSL Yale. Many new transitions were observed and rigorous spin assignments were made based on gamma-gamma angular correlations. The beta-decay strength was found to proceed almost entirely to a few high-lying states near 4500 keV, which are consistent with deformed two-quasineutron high-K configurations. These doorway states then provide an effective tool for populating and identifying the lower prolate structures. Once categorized, the low-lying states of Se-74 can be described as a set of near-spherical vibrational levels mixing strongly with a spectrum of prolate states which have an unperturbed bandhead near 1350 keV. DOI: 10.1103/PhysRevC.87.014307

引用

页数：14

共 5 条

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Thiamová, G
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R. Loritz
O. Iordanov
E. Galindo
A. Jungclaus
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K.P. Lieb
C. Teich
F. Cristancho
Ch. Ender
T. Härtlein
F. Köck
D. Schwalm
The European Physical Journal A - Hadrons and Nuclei, 1999, 6 : 257 - 268
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Loritz, R
Iordanov, O
Galindo, E
Jungclaus, A
Kast, D
Lieb, KP
Teich, C
Cristancho, F
Ender, C
Härtlein, T
Köck, F
Schwalm, D
EUROPEAN PHYSICAL JOURNAL A, 1999, 6 (03): : 257 - 268
[4] Shape coexistence in 72Se investigated following the β decay of 72Br
McCutchan, E. A.
Lister, C. J.
Ahn, T.
Casperson, R. J.
Heinz, A.
Ilie, G.
Qian, J.
Williams, E.
Winkler, R.
Werner, V.
PHYSICAL REVIEW C, 2011, 83 (02):
[5] HIGH-SPIN STATES IN SE-77 POPULATED BY GE-74(ALPHA,NGAMMA) REACTION
ZELL, KO
FRIEDERICHS, HG
HEITS, B
HIPPE, D
SCHUH, HW
BRENTANO, PV
PROTOP, C
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1976, 276 (04): : 371 - 380

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