g-factors of isomers around N≈40, Z≈28 from time-dependent Larmor precession on spin-aligned projectile-like fragments

被引：0

作者：

Neyens, G

Georgiev, G

Grzywacz, R

Hass, M

Santos, FD

Lewitowicz, M

Balabanski, DL

Bingham, C

Borcea, C

Coulier, N

Coussement, R

Daugas, JM

Defrance, G

Goldring, G

Górska, M

Grawe, H

O'Leary, C

Macovei, I

Mach, H

Page, R

Pfützner, M

Penionzkevich, YE

Podolyak, Z

Regan, PH

Rykaczewski, K

Sawicka, M

Smirnova, NA

Sobolev, Y

Teughels, S

Vyvey, K

机构：

[1] Katholieke Univ Leuven, IKS, B-3001 Louvain, Belgium

[2] GANIL, F-14076 Caen 5, France

[3] Univ Tennessee, Knoxville, TN 37996 USA

[4] Weizmann Inst Sci, IL-76100 Rehovot, Israel

[5] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

[6] IAP, Bucharest, Romania

[7] GSI Darmstadt, D-6100 Darmstadt, Germany

[8] Warsaw Univ, IEP, Warsaw, Poland

[9] Univ Liverpool, Liverpool L69 3BX, Merseyside, England

[10] JINR, FLNR, Dubna, Russia

[11] Univ Surrey, Guildford GU2 7XH, Surrey, England

[12] St Kliment Ohridski Univ Sofia, Fac Phys, Sofia, Bulgaria

[13] Uppsala Univ, ISV, Studsvik, Sweden

来源：

NUCLEAR PHYSICS A | 2002年 / 701卷

关键词：

nuclear structure; exotic nuclei; projectile fragmentation reactions; g-factors; Cu-69m; TDPAD;

D O I：

暂无

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：

First and preliminary results of an experiment aimed at measuring g-factors of isomeric states in neutron-rich nuclei in the vicinity of Ni-68 are reported, Isomers near the predicted N = 40 sub-shell closure in Cu-69, Ni-67 and Co-66 have been populated in the fragmentation of a Ge-76, 61.4 MeV/u beam onto a 145 mg/cm(2) (9)Bc target at GANIL. Here we report the results for the 357(2) ns, I-pi = 13/2(+) isomer in Cu-69 for which a preliminary gyromagnetic ratio of \g\ = 0.195(9) was derived. The Larmor precession of the spin-oriented isomeric ensemble was measured by recording gamma-ion correlations in a 20 mus time window. This pioneering experiment has indicated interesting nuclear structure information and shows promising possibilities for future studies of this kind. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：403C / 409C

页数：7