Observation and Quadrupole-Moment Measurement of the First Superdeformed Band in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">A</mml:mi><mml:mi/><mml:mi>∼</mml:mi><mml:mi/><mml:mn>60</mml:mn></mml:math>Mass Region
C. E. SvenssonDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1C. BaktashPhysics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6371J. A. CameronDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1M. DevlinChemistry Department, Washington University, St. Louis, Missouri 63130J. EberthInstitut für Kernphysik, Universität zu Köln, D-50937 Köln, GermanyStéphane FlibotteDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1D. S. HaslipDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1D. R. LaFosseChemistry Department, Washington University, St. Louis, Missouri 63130I. Y. LeeNuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720A. O. MacchiavelliNuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720R. W. MacLeodNuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720J. M. NieminenDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1S. D. PaulPhysics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6371L. L. RiedingerDepartment of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996D. RudolphSektion Physik, Ludwig-Maximilians-Universität München, D-85748 Garching, GermanyD. G. SarantitesChemistry Department, Washington University, St. Louis, Missouri 63130H.G. ThomasInstitut für Kernphysik, Universität zu Köln, D-50937 Köln, GermanyJ. C. WaddingtonDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1W. WeintraubDepartment of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996J. N. WilsonDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S 4M1A. V. AfanasjevI. Ragnarsson
1997lv
ABI
Abstract
A high-spin rotational cascade of six $\ensuremath{\gamma}$ rays has been observed in ${}^{62}\mathrm{Zn}$. The quadrupole moment of ${2.7}_{\ensuremath{-}0.5}^{+0.7}e\mathrm{b}$ measured for this band corresponds to a deformation ${\ensuremath{\beta}}_{2}{\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.45}_{\ensuremath{-}0.07}^{+0.10}$. The properties of this band are in excellent agreement with calculations that predict high-spin superdeformed bands in ${}^{62}\mathrm{Zn}$ with deformations ${\ensuremath{\beta}}_{2}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.41--0.49$. These results establish a new region of superdeformation for nuclei with neutron and proton numbers $N,Z\ensuremath{\approx}30--32$.
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Cited by 60 references