Статья

Yrast superdeformed band in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>59</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:math>

C. AndreoiuDepartment of Physics, Lund University, S-22100 Lund, SwedenD. RudolphDepartment of Physics, Lund University, S-22100 Lund, SwedenC. E. SvenssonNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720A. V. AfanasjevLaboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, LatviaJ. DobaczewskiInstitute of Theoretical Physics, Warsaw University, PL-00681 Warsaw, PolandI. RagnarssonC. BaktashPhysics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831J. EberthInstitut für Kernphysik, Universität zu Köln, D-50937 Köln, GermanyC. FahlanderDepartment of Physics, Lund University, S-22100 Lund, SwedenD. S. HaslipDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1D. R. LaFosseChemistry Department, Washington University, St. Louis, Missouri 63130S. D. PaulPhysics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831D. 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, University of Tennessee, Knoxville, Tennessee 37996J. N. WilsonDepartment of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1C.-H. YuPhysics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831

2000lv

ABI

Аннотация

High-spin states in ${}^{59}\mathrm{Cu}$ were populated using the fusion-evaporation reactions ${}^{28}\mathrm{Si}{+}^{40}\mathrm{Ca}$ at a beam energy of 125 MeV and ${}^{36}\mathrm{Ar}{+}^{28}\mathrm{Si}$ at a beam energy of 143 MeV. The Gammasphere array in conjunction with ancillary detector systems allowed for the identification of a superdeformed rotational band in ${}^{59}\mathrm{Cu},$ which was firmly linked to low-spin yrast states. Using directional correlations of oriented states, a spin-parity assignment of ${I}^{\ensuremath{\pi}}{=25/2}^{+}$ to the band head was possible. The average quadrupole moment of the band is measured to be ${Q}_{t}=(2.24\ifmmode\pm\else\textpm\fi{}0.40) e\mathrm{b}.$ The characteristics of the band are compared to neighboring nuclei and predictions of different mean-field theories.

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Идентификаторы

DOI: 10.1103/physrevc.62.051301

Цитирования и источники

Цитирований: 6Использованных источников: 0

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