High-spin excitations of 81,82,83,85Se: Competing single-particle and collective structures around N=50

被引：19

作者：

Porquet, M. -G. ^{[1
,4
]}

Astier, A. ^{[1
,4
]}

Venkova, Ts. ^{[1
,2
,4
]}

Prevost, A. ^{[1
,4
]}

Deloncle, I. ^{[1
,4
]}

Azaiez, F. ^{[3
,5
]}

Buta, A. ^{[3
,5
]}

Curien, D. ^{[3
,5
]}

Dorvaux, O. ^{[3
,5
]}

Duchene, G. ^{[3
,5
]}

Gall, B. J. P. ^{[3
,5
]}

Khalfallah, F. ^{[3
,5
]}

Piqueras, I. ^{[3
,5
]}

Rousseau, M. ^{[3
,5
]}

Meyer, M. ^{[6
,7
]}

Redon, N. ^{[6
,7
]}

Stezowski, O. ^{[6
,7
]}

Lucas, R. ^{[8
]}

Bogachev, A. ^{[9
]}

机构：

[1] IN2P3 CNRS, CSNSM, F-91405 Orsay, France

[2] BAS, INRNE, Sofia 1784, Bulgaria

[3] IN2P3 CNRS, IPHC, F-67037 Strasbourg 2, France

[4] Univ Paris 11, F-91405 Orsay, France

[5] Univ Strasbourg, F-67037 Strasbourg 2, France

[6] IN2P3 CNRS, IPNL, F-69622 Villeurbanne, France

[7] Univ Lyon 1, F-69622 Villeurbanne, France

[8] CEA Saclay, DSM DAPNIA SPhN, F-91191 Gif Sur Yvette, France

[9] Joint Inst Nucl Res Dubna, Dubna 142080, Moscow Region, Russia

来源：

EUROPEAN PHYSICAL JOURNAL A | 2009年 / 39卷 / 03期

关键词：

GE DETECTORS; SHELL-MODEL; HEAVY-IONS; ISOTONES; FISSION; STABILITY; ISOTOPES; ENERGY; NI-78; SUBSHELLS;

D O I：

10.1140/epja/i2008-10723-2

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：

The Se-81,Se-82,Se-83,Se-85 nuclei have been produced as fission fragments in the fusion reaction O-18 + Pb-208 at 85MeV bombarding energy and studied with the Euroball IV array. Their high-spin level schemes have been built from the triple gamma-ray coincidence data and gamma-gamma angular correlations have been analyzed in order to assign spin and parity values to many observed states. The lowest-spin states of the two-neutron and three-neutron configurations are strongly mixed with two-proton excitations among the fp orbits. On the other hand, the highest-spin states of these neutron configurations are found to remain almost pure. Neutron excitation across the N = 50 gap is observed both in Se-83(49) and in Se-85(51).

引用

页码：295 / 306

页数：12

共 8 条

[1] High-spin excitations of 81, 82, 83, 85Se : Competing single-particle and collective structures around N = 50
M. -G. Porquet
A. Astier
Ts. Venkova
A. Prévost
I. Deloncle
F. Azaiez
A. Buta
D. Curien
O. Dorvaux
G. Duchêne
B. J. P. Gall
F. Khalfallah
I. Piqueras
M. Rousseau
M. Meyer
N. Redon
O. Stézowski
R. Lucas
A. Bogachev
The European Physical Journal A, 2009, 39 : 295 - 306
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[6] High-spin structures of 3688Kr52 and 3789Rb52: Evolution from collective to single-particle behavior
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Venkova, Ts.
Duchene, G.
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Dorvaux, O.
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Redon, N.
Rousseau, M.
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PHYSICAL REVIEW C, 2013, 88 (02):
[7] Single-particle structures, high-spin isomers, and a strongly coupled band in odd-odd 120Sb
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PHYSICAL REVIEW C, 2014, 90 (01):
[8] Single-particle structures, high-spin isomers, and a strongly coupled band in odd-odd 120Sb (vol 90, 014313, 2014)
Liu, L.
Wang, S. Y.
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PHYSICAL REVIEW C, 2023, 108 (05)

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