First measurements of the g factors of the 21+ and 31- states of semi-magic 9040Zr

被引：17

作者：

Jakob, G ^{[1
]}

Benczer-Koller, N

Holden, J

Kumbartzki, G

Mertzimekis, T

Speidel, KH

Ernst, R

Maier-Komor, P

Beausang, CW

Krücken, R

机构：

[1] Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USA

[2] Univ Bonn, Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[3] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

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

来源：

PHYSICS LETTERS B | 2000年 / 494卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(00)01197-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The g factors of the 2(1)(+) and 3(1)(-) states in semi-magic Zr-90 have been measured for the first time with the technique of Coulomb excitation of 90Zr beams in inverse kinematics in combination with transient magnetic fields. The resulting g factors, g(2(1)(+)) = +1.25(21) and g(3(1)(-)) = +0.986(56), are both consistent with a dominant g(9/2) proton configuration and a closed N = 50 neutron shell. The lifetime of the 2(1)(+) state was measured by the Doppler shift attenuation method, tau = 0.126(3) ps. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：187 / 192

页数：6

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