Violations of K-Conservation in 178Hf

Journal Article · Mon Mar 13 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2187830· OSTI ID:20798297

Hayes, A B; Cline, D; Wu, C Y; Simon, M W; Teng, R ^[1]; Ai, J; Amro, H; Casten, R F; Hecht, A A; Heinz, A; Hughes, R; Meyer, D A ^[2]; Beausang, C ^[3]; Gerl, J; Schlegel, Ch; Wollersheim, H J ^[4]; Janssens, R V. F.; Lister, C J; Moore, E F; Pardo, R C ^[5]

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1. Nuclear Structure Research Laboratory, Department of Physics, University of Rochester, Rochester, NY 14627 (United States)
2. Wright Nuclear Structure Laboratory, Yale University, New Haven, CT 06520 (United States)
3. Physics Department, University of Richmond, Richmond, VA 23173 (United States)
4. GSI, Gesellschaft fuer Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt (Germany)
5. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Coulomb excitation of K{pi}=6+(t1/2=77 ns), 8-(t1/2=4.0 s) and 16+(t1/2=31 y) 178Hf isomers has led to the measurement of a set of E{lambda} matrix elements, coupling the isomer bands to the {gamma}- and ground state bands. The resulting matrix elements, derived using a coupled-channel semiclassical Coulomb excitation search code, have been used to probe the K-components in the wave functions and revealed the onset and saturation of K-mixing in low-K bands, whereas K-mixing is negligible in the high-K bands. The implications can be applied to other quadrupole-deformed nuclei. An upper limit on the Coulomb depopulation yield of the 16+ isomer was calculated based on the present set of matrix elements.

• OSTI ID: 20798297
• Journal Information: AIP Conference Proceedings, Vol. 819, Issue 1; Conference: 12. international symposium on capture gamma-ray spectroscopy and related topics, Notre Dame, IN (United States), 4-9 Sep 2005; Other Information: DOI: 10.1063/1.2187830; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB EXCITATION
COUPLED CHANNEL THEORY
COUPLING
DEFORMED NUCLEI
GROUND STATES
HAFNIUM 178
ISOMERIC NUCLEI
MATRIX ELEMENTS
NUCLEAR REACTION YIELD
QUADRUPOLES
SEMICLASSICAL APPROXIMATION
WAVE FUNCTIONS