Spin and magnetic moment of 31Al ground state

被引：27

作者：

Borremans, D

Teughels, S

Smirnova, NA

Balabanski, DL

Coulier, N

Daugas, JM

Santos, FD

Georgiev, G

Lewitowicz, M

Matea, I

Penionzhkevich, YE

Schmidt-Ott, WD

Sobolev, Y

Stanoiu, M

Vyvey, K

Neyens, G

机构：

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

[2] St Kliment Ohridski Univ Sofia, BG-1164 Sofia, Bulgaria

[3] JINR, FLNR, Dubna, Russia

[4] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany

[5] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

来源：

PHYSICS LETTERS B | 2002年 / 537卷 / 1-2期

关键词：

beta-NMR; spin-polarization from projectile-fragmentation; Al-31 ground state g-factor spin and parity;

D O I：

10.1016/S0370-2693(02)01867-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The g-factor of the ground state of Al-31 (T-1/2 = 640 ms) has been measured by the beta-NMR technique on a polarized secondary fragment beam at GANIL. Caen, France. The measured value of \g\ = 1.517(20) is compared with sd-shell model calculations. which allows the assignment of spin and parity I-pi = 5/2(+) to this state. The spectroscopy of neutron-rich Al isotopes on the border of the "island of inversion" is discussed in terms of the persistence of the N=20 shell closure for Z=13 nuclei. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：45 / 50

页数：6

共 39 条

[31] Deformation of nuclei close to the two-neutron drip line in the Mg region [J].