PT Journal
AU Caballero, L
   Rubio, B
   Kleinheinz, P
   Yates, SW
   Algora, A
   Dewald, A
   Fitzler, A
   Gadea, A
   Jolie, J
   Julin, R
   Linnemann, A
   Lunardi, S
   Menegazzo, R
   Moller, O
   Nacher, E
   Piiparinen, M
   Blomqvist, J
TI Two-phonon octupole excitation in Gd-146
SO Physical Review C
JI Phys. Rev. C
PY 2010
BP 031301
EP 4pp
VL 81
IS 3
DI 10.1103/PhysRevC.81.031301
LA English
AB Based on experimental evidence from the Sm-144(alpha,2n) reaction, the 3484.7- keV 6(+) state in Gd-146 is identified as the highest-spin member of the 3(-) circle times 3(-) two-phonon octupole quartet. A previously unknown gamma 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.
ER