Evidence of chiral bands in even-even nuclei
Petrache, C. M., Lv, B. F., Astier, A., Dupont, E., Wang, Y. K., Zhang, S. Q., . . . Andreoiu, C. (2018). Evidence of chiral bands in even-even nuclei. Physical Review C, 97 (4), 041304(R). doi:10.1103/PhysRevC.97.041304
Published in
Physical Review CDate
2018Copyright
© 2018 American Physical Society. Published in this repository with the kind permission of the publisher.
Evidence for chiral doublet bands has been observed for the first time in the even-even nucleus
136
Nd
. One chiral band was firmly established. Four other candidates for chiral bands were also identified, which can contribute to the realization of the multiple pairs of chiral doublet bands (
M
χ
D
) phenomenon. The observed bands are investigated by the constrained and tilted axis cranking covariant density functional theory (TAC-CDFT). Possible configurations have been explored. The experimental energy spectra, angular momenta, and
B
(
M
1
)
/
B
(
E
2
)
values for the assigned configurations are globally reproduced by TAC-CDFT. Calculated results support the chiral interpretation of the observed bands, which correspond to shapes with maximum triaxiality induced by different multiquasiparticle configurations in
136
Nd
.