Superdeformed and highly deformed bands in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>65</mn></mrow></msup></mrow><mi mathvariant="normal">Zn</mi></math></span> and neutron-proton interactions in Zn isotopes

C.-H. Yu; C. Baktash; J. Dobaczewski; J. A. Cameron; M. Devlin; J. Eberth; A. Galindo-Uribarri; D. S. Haslip; D. R. LaFosse; T. J. Lampman; I.-Y. Lee; F. Lerma; A. O. Macchiavelli; S. D. Paul; D. C. Radford; D. Rudolph; D. G. Sarantites; C. E. Svensson; J. C. Waddington; J. N. Wilson

doi:10.1103/PhysRevC.62.041301

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Superdeformed and highly deformed bands in $^{65} Zn$ and neutron-proton interactions in Zn isotopes

C.-H. Yu, C. Baktash, J. Dobaczewski, J. A. Cameron, M. Devlin, J. Eberth, A. Galindo-Uribarri, D. S. Haslip, D. R. LaFosse, T. J. Lampman, I.-Y. Lee, F. Lerma, A. O. Macchiavelli, S. D. Paul, D. C. Radford, D. Rudolph, D. G. Sarantites, C. E. Svensson, J. C. Waddington, and J. N. Wilson

Phys. Rev. C 62, 041301(R) – Published 11 September 2000

Abstract

Superdeformed and highly deformed rotational bands were established in $^{65} Zn$ using the $^{40} Ca (^{29} Si {, 4 p)}^{65} Zn$ reaction, and averaged quadrupole moments were measured for two of these bands. The configurations of these bands were assigned based on Hartree-Fock calculations. One of the three bands exhibits at low $ħ ω$ a rise in the $J^{(2)}$ dynamic moments of inertia that is similar to the alignment gain observed in $^{60} Zn .$ A comparison of the rotational band configurations and their $J^{(2)}$ moments of inertia for light Zn isotopes suggests that the rise in $J^{(2)}$ is most likely caused by $np$ interactions associated with the valence protons and neutrons occupying the $g_{9 / 2}$ intruder orbits.

Received 31 May 2000

DOI:https://doi.org/10.1103/PhysRevC.62.041301

Authors & Affiliations

C.-H. Yu¹, C. Baktash¹, J. Dobaczewski², J. A. Cameron³, M. Devlin^4,*, J. Eberth⁵, A. Galindo-Uribarri¹, D. S. Haslip^3,†, D. R. LaFosse^4,‡, T. J. Lampman³, I.-Y. Lee⁶, F. Lerma⁴, A. O. Macchiavelli⁶, S. D. Paul^1,7, D. C. Radford¹, D. Rudolph⁸, D. G. Sarantites⁴, C. E. Svensson^3,6, J. C. Waddington³, and J. N. Wilson^5,§

¹Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
²Institute of Theoretical Physics, Warsaw University, Hoza 69, PL-00681 Warsaw, Poland
³Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
⁴Chemistry Department, Washington University, St. Louis, Missouri 63130
⁵Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
⁶Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
⁷Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee 37831
⁸Department of Physics, Lund University, S-22100 Lund, Sweden

^*Present address: LANSCE-3, MS H855, Los Alamos National Laboratory, Los Alamos, NM 87545.
^†Present address: Defence Research Establishment Ottawa, Ottawa, Ontario, Canada.
^‡Present address: Department of Physics, State University of New York at Stony Brook, Stony Brook, NY 11794.
^§Present address: Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark.

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Vol. 62, Iss. 4 — October 2000

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