New island of μs isomers in neutron-rich nuclei around the Z = 28 and N = 40 shell closures

被引：213

作者：

Grzywacz, R

Beraud, R

Borcea, C

Emsallem, A

Glogowski, M

Grawe, H

Guillemaud-Mueller, D

Hjorth-Jensen, M

Houry, M

Lewitowicz, M

Mueller, AC

Nowak, A

Plochocki, A

Pfutzner, M

Rykaczewski, K

Saint-Laurent, MG

Sauvestre, JE

Schaefer, M

Sorlin, O

Szerypo, J

Trinder, W

Viteritti, S

Winfield, J

机构：

[1] Univ Warsaw, IFD, PL-00681 Warsaw, Poland

[2] GANIL, F-14021 Caen, France

[3] Univ Tennessee, Knoxville, TN 37996 USA

[4] Inst Phys Nucl, F-69622 Villeurbanne, France

[5] IAP, Bucharest, Romania

[6] GSI Darmstadt, D-64220 Darmstadt, Germany

[7] Inst Phys Nucl, CNRS, IN2P3, F-91406 Orsay, France

[8] NORDITA, DK-2100 Copenhagen, Denmark

[9] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37830 USA

[10] IKS, B-3001 Heverlee, Belgium

[11] Ctr Etud Bruyeres Le Chatel, F-91680 Bruyeres Le Chatel, France

[12] Univ Gottingen, D-37073 Gottingen, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.81.766

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

New isomeric states in the neutron-rich nuclei near the Z = 28 and N = 40 shell closures have been identified among the reaction products of a 60.3A MeV (86)Kr beam on a (nat)Ni target. From the measured isomeric decay properties information about the excited states and their nuclear structure has been obtained. The isomerism is related mostly to the occupation of the neutron g(9/2) orbital, an intruder level in the N = 3 fp shell. It is illustrated with the decay properties of (69)Ni(m), (70)Ni(m), and (71)Cu(m) interpreted within the nuclear shell model. [S0031-9007(98)06719-2].

引用

页码：766 / 769

页数：4

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