Magnetic moment of the fragmentation-aligned 61Fe (9/2(+)) isomer.
Phys Rev Lett
; 93(14): 142503, 2004 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-15524786
ABSTRACT
We report on the g factor measurement of an isomer in the neutron-rich (61)(26)Fe (E(*)=861 keV and T(1/2)=239(5) ns). The isomer was produced and spin aligned via a projectile-fragmentation reaction at intermediate energy, the time dependent perturbed angular distribution method being used for the measurement of the g factor. For the first time, due to significant improvements of the experimental technique, an appreciable residual alignment of the nuclear spin ensemble has been observed, allowing a precise determination of its g factor, including the sign g=-0.229(2). In this way we open the possibility to study moments of very neutron-rich short-lived isomers, not accessible via other production and spin-orientation methods.
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MEDLINE
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En
Ano de publicação:
2004
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Article