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

Abstract

Evidence for the existence of long-lived neutron-deficient isotopes has been found in a study of naturally-occurring Th using iductively coupled plasma-sector field mass spectrometry. They are interpreted as belonging to the recently discovered class of long-lived high spin super- and hyperdeformed isomers.

13 pages including 6 figures and 1 table

References in corpus (4)

• Discovery of Long-Lived Shape Isomeric States which Decay by Strongly Retarded High-Energy Particle Radioactivity
• Strongly Enhanced Low Energy Alpha-Particle Decay in Heavy Actinide Nuclei and Long-Lived Superdeformed and Hyperdeformed Isomeric States
• New Outlook on the Possible Existence of Superheavy Elements in Nature
• Coherent Description for Hitherto Unexplained Radioactivities by Super- and Hyperdeformed Isomeric States

Cited by in corpus (9)

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• Relativistic mean field study of the properties of Z=117 nucleus and the decay chains of ${}^{293,294}$117 isotopes
• Evidence for a long-lived superheavy nucleus with atomic mass number A=292 and atomic number Z=~122 in natural Th
• Superdeformed and Hyperdeformed States in Z=122 Isotopes
• Existence of long-lived isotopes of a superheavy element in natural Au
• Search for long-lived isomeric states in neutron-deficient thorium isotopes
• Enrichment of the Superheavy Element Rg in Natural Au
• ICP-SFMS search for long-lived naturally-occurring heavy, superheavy and superactinide nuclei compared to AMS experiments
• Response to "Discovery of the element with atomic number 112" by Robert C. Barber, Heinz W. Gaggeler, Paul J. Karol, Hiromichi Nakahara, Emanuele Vardaci and Erich Vogt (PAC-REP-08-03-05)