Lifetime measurements of the 51-, 41-, and 32- levels in 144Nd, coupled with measurements of the M1/E2 mixing of the 41- → 31- and 32- → 31- transitions, show that the transition strengths from these levas are in good agreement with those expected for quadrupole-octupole coupled states. Admixtures of the ν2 (f7/2i13/2) quasiparticle configuration are the most likely explanation for the relatively large B(M 1:4- > 3-) value measured in the current work and the previously measured B(E5:5- → 0+) value.
|Number of pages||6|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - 1999|
Bibliographical noteFunding Information:
This work was supported by the U.S. Department of Energy, via Contract Nos. DE-FG05-93ER40809, DE-FG02-97ER41024, DE-FG05-87ER40314 and DE-AC03-76SF00098. One of the authors (M.K.H.) acknowledges support from the EPSRC.