Two-particle separation energy trends in the superdeformed well

A. N. Wilson, A. Korichi, S. Siem, A. Astier, D. Bazzacco, P. Bednarczyk, M. H. Bergström, S. Chmel, D. M. Cullen, P. M. Davidson, A. Görgen, F. Hannachi, H. Hübel, N. Kintz, T. Lauritsen, A. Lopez-Martens, S. Lunardi, S. Naguleswaran, B. M. Nyakó, M. RejmundG. Schönwasser, C. Schück, J. F. Sharpey-Schafer, J. Timar, R. Wadsworth, J. Libert

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Abstract

A measurement of the energy and spin of superdeformed states in Hg190, obtained through the observation of transitions directly linking superdeformed and normal states, expands the number of isotopes in which binding energies at superdeformation are known. Comparison with neighboring nuclei shows that two-proton separation energies are higher in the superdeformed state than in the normal state, despite the lower Coulomb barrier and lower total binding energy. This unexpected result provides a critical test for nuclear models.

Original languageEnglish
Article number162501
JournalPhysical review letters
Volume104
Issue number16
DOIs
Publication statusPublished - Apr 20 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Wilson, A. N., Korichi, A., Siem, S., Astier, A., Bazzacco, D., Bednarczyk, P., Bergström, M. H., Chmel, S., Cullen, D. M., Davidson, P. M., Görgen, A., Hannachi, F., Hübel, H., Kintz, N., Lauritsen, T., Lopez-Martens, A., Lunardi, S., Naguleswaran, S., Nyakó, B. M., ... Libert, J. (2010). Two-particle separation energy trends in the superdeformed well. Physical review letters, 104(16), [162501]. https://doi.org/10.1103/PhysRevLett.104.162501