Gamma-ray spectroscopy of superdeformed states in the nucleus 152Dy

M. A. Bentley, A. Alderson, G. C. Ball, H. W. Cranmer-Gordon, P. Fallon, B. Fant, P. D. Forsyth, B. Herskind, D. Howe, C. A. Kalfas, A. R. Mokhtar, J. D. Morrison, A. H. Nelson, B. M. Nyako, K. Schiffer, J. F. Sharpey-Schafer, J. Simpson, G. Sletten, P. J. Twin

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Abstract

A gamma -ray spectroscopic study of the high spin states of the nucleus 152Dy has been performed using the reaction 108Pd( 48Ca,4n)152Dy at a bombarding energy of 205 MeV. Gamma rays were detected using the TESSA3 multi-detector array. A set of discrete-line states forming a rotational band has been observed in the data and has been shown to extend up to a spin of around 60h(cross) and an excitation energy of about 30 MeV. The gamma -ray energy data are consistent with dynamic moment of inertia F(2) of (85+or-3)h(cross)2 MeV-1, indicating a large quadrupole deformation. A measurement of the collectivity of the band has been made using the Doppler shift attenuation method, with the data for the lower spin states yielding a quadrupole moment of Q0=(18+or- 3) e b.

Original languageEnglish
Article number009
Pages (from-to)481-510
Number of pages30
JournalJournal of Physics G: Nuclear and Particle Physics
Volume17
Issue number4
DOIs
Publication statusPublished - Dec 1 1991

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Bentley, M. A., Alderson, A., Ball, G. C., Cranmer-Gordon, H. W., Fallon, P., Fant, B., Forsyth, P. D., Herskind, B., Howe, D., Kalfas, C. A., Mokhtar, A. R., Morrison, J. D., Nelson, A. H., Nyako, B. M., Schiffer, K., Sharpey-Schafer, J. F., Simpson, J., Sletten, G., & Twin, P. J. (1991). Gamma-ray spectroscopy of superdeformed states in the nucleus 152Dy. Journal of Physics G: Nuclear and Particle Physics, 17(4), 481-510. [009]. https://doi.org/10.1088/0954-3899/17/4/009