Chirality of ${}^{135}$Nd reexamined: Evidence for multiple chiral doublet bands

Abstract

One new pair of positive-parity chiral doublet bands have been identified in the odd-$A$ nucleus ${}^{135}$Nd which together with the previously reported negative-parity chiral doublet bands constitute a third case of multiple chiral doublet (M$\ddot{I}‡$D) bands in the $A\approx 130$ mass region. The properties of the M$\ddot{I}‡$D bands are well reproduced by constrained covariant density functional theory and particle rotor model calculations. The newly observed M$\ddot{I}‡$D bands in ${}^{135}$Nd represents an important milestone in supporting the existence of M$\ddot{I}‡$D in nuclei.