Two-phonon octupole excitation in Gd146

L. Caballero, B. Rubio, P. Kleinheinz, S. W. Yates, A. Algora, A. Dewald, A. Fitzler, A. Gadea, J. Jolie, R. Julin, A. Linnemann, S. Lunardi, R. Menegazzo, O. Möller, E. Nácher, M. Piiparinen, J. Blomqvist

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Based on experimental evidence from the Sm144(α,2n) reaction, the 3484.7-keV 6+ state in Gd146 is identified as the highest-spin member of the 3--3- two-phonon octupole quartet. A previously unknown γ line of 1905.8 keV and E3 character feeding the 3- octupole state has been observed. These results represent the first observation of a 6+→3-→0+ cascade of two E3 transitions in an even-even nucleus and provide strong support for the interpretation of the 6+ state as a two-phonon octupole excitation.

Original languageEnglish
Article number031301
JournalPhysical Review C - Nuclear Physics
Issue number3
StatePublished - Mar 9 2010

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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