Lauritsen T, Janssens R V F, Carpenter M P, Fallon P, Herskind B, Jenkins D G, Khoo T L, Kondev F G, Lopez-Martens A, Macchiavelli A O, Ward D, Saleem K Abu, Ahmad I, Clark R M, Cromaz M, Døssing T, Heinz A M, Korichi A, Lane G, Lister C J, Seweryniak D
Argonne National Laboratory, Argonne, Illinois 60439, USA.
Phys Rev Lett. 2002 Dec 31;89(28 Pt 1):282501. doi: 10.1103/PhysRevLett.89.282501.
Nine transitions of dipole character have been identified linking an excited superdeformed (SD) band in 152Dy to the yrast SD band. As a result, the excitation energy of the lowest level in the excited SD band has been measured to be 14 238 keV. This corresponds to a 1.3 MeV excitation above the SD ground state. The levels in this band have tentatively been determined to be of negative parity and odd spin. The measured properties are consistent with an interpretation in terms of a rotational band built on a collective octupole vibration.
已识别出九个具有偶极特性的跃迁，它们将(^{152}Dy)中的一个激发超形变（SD）带与基态SD带相连。结果，测得激发SD带中最低能级的激发能为14238keV。这对应于比SD基态高1.3MeV的激发。该能带中的能级初步确定为负宇称和奇自旋。测量结果与基于集体八极振动构建的转动带的解释一致。
