K isomers as probes of nuclear structure

Journal Article · Thu Aug 14 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4893269· OSTI ID:22308430

Tandel, S. K., E-mail: [e-mail] ^[1]

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1. UM-DAE Centre for Excellence in Basic Sciences, Mumbai 400098 (India)

K isomers are studied in Pu and Cm isotopes, and also in Hf and W nuclei. Many high-K states, several of which are isomeric, are identified. Lifetime measurements spanning the ns-s range have been performed, and decay paths of isomers established. Rotational bands built on high-K states are also identified in many cases. Isomer decays are considerably hindered in many instances, both in the A≈180 and 250 regions indicating that K is an approximately conserved quantum number. High-K states become the favored excitation mode at high spins in the A≈180 region. The energies of the 2-quasiparticle high-K states in Cm isotopes suggest the presence of a deformed subshell gap at N=152.

• OSTI ID: 22308430
• Journal Information: AIP Conference Proceedings, Vol. 1609, Issue 1; Conference: FIG12: International conference on frontiers in gamma-ray spectroscopy 2012, New Delhi (India), 5-7 Mar 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
DECAY
EXCITATION
HYDROFLUORIC ACID
ISOMERIC NUCLEI
LIFETIME
NUCLEAR STRUCTURE
PROBES
ROTATIONAL STATES
SPIN