Relative spins and excitation energies of superdeformed bands in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Hg</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>190</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>: Further evidence for octupole vibration
B. CrowellArgonne National Laboratory, Argonne, Illinois 60439M. P. CarpenterArgonne National Laboratory, Argonne, Illinois 60439R. V. F. JanssensArgonne National Laboratory, Argonne, Illinois 60439D. J. BlumenthalArgonne National Laboratory, Argonne, Illinois 60439J. TímárArgonne National Laboratory, Argonne, Illinois 60439A. N. WilsonArgonne National Laboratory, Argonne, Illinois 60439J. F. Sharpey‐SchaferArgonne National Laboratory, Argonne, Illinois 60439Takashi NakatsukasaArgonne National Laboratory, Argonne, Illinois 60439I. AhmadArgonne National Laboratory, Argonne, Illinois 60439A. AstierArgonne National Laboratory, Argonne, Illinois 60439F. AzaiezArgonne National Laboratory, Argonne, Illinois 60439L. du CrouxArgonne National Laboratory, Argonne, Illinois 60439B. J. P. GallArgonne National Laboratory, Argonne, Illinois 60439F. HannachiArgonne National Laboratory, Argonne, Illinois 60439T. L. KhooArgonne National Laboratory, Argonne, Illinois 60439A. KorichiArgonne National Laboratory, Argonne, Illinois 60439T. LauritsenArgonne National Laboratory, Argonne, Illinois 60439А. Лопез-МартенсArgonne National Laboratory, Argonne, Illinois 60439M. MeyerArgonne National Laboratory, Argonne, Illinois 60439D. NisiusArgonne National Laboratory, Argonne, Illinois 60439E. S. PaulArgonne National Laboratory, Argonne, Illinois 60439M.-G. PorquetArgonne National Laboratory, Argonne, Illinois 60439N. RedonArgonne National Laboratory, Argonne, Illinois 60439
1995lv
ABI
Аннотация
An experiment using the Eurogam phase II \ensuremath{\gamma}-ray spectrometer confirms the existence of an excited superdeformed (SD) band in $^{190}\mathrm{Hg}$ and its very unusual decay into the lowest SD band over 3--4 transitions. The energies of the transitions linking the two SD bands have been firmly established, and their angular distributions are consistent with a dipole character. Comparisons with calculations using random-phase approximation indicate that the excited SD band can be interpreted as an octupole-vibrational structure.
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