Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes

Abstract : Four long-lived neutron-deficient Th isotopes with atomic mass numbers 211 to 218 and abundances of (1-10)x10(-11) relative to Th-232 have been found in a study of naturally-occurring Th using inductively coupled plasma-sector field mass spectrometry. It is deduced that long-lived isomeric states exist in these isotopes. The hypothesis that they might belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed.
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Article dans une revue
Physical Review C, American Physical Society, 2007, 76, pp.021303. <10.1103/PhysRevC.76.021303>
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Soumis le : lundi 1 octobre 2007 - 14:33:51
Dernière modification le : lundi 1 octobre 2007 - 14:51:27

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A. Marinov, I. Rodushkin, Y. Kashiv, L. Halicz, I. Segal, et al.. Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes. Physical Review C, American Physical Society, 2007, 76, pp.021303. <10.1103/PhysRevC.76.021303>. <in2p3-00175822>

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