Phys.Rev. C 97, 014305 (2018)

K.Y.Ma, J.B.Lu, Z.Zhang, J.Q.Liu, D.Yang, Y.M.Liu, X.Xu, X.Y.Li, Y.Z.Liu, X.G.Wu, Y.Zheng, C.B.Li

Candidate chiral doublet bands in ¹³⁸Pm

NUCLEAR REACTIONS ¹²⁴Te(¹⁹F, 5n), E=105 MeV from HI-13 tandem accelerator at CIAE, Beijing; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using an array of ten Compton-suppressed HPGe, one HPGe planar and one clover Ge detectors. ¹³⁸Pm; deduced high-spin levels, J, π, chiral doublet band, energy staggering, alignments, configuration, B(M1)/B(E2) ratio. Cranked shell model calculations for quasiproton and quasineutron Routhians, and total Routhian surface (TRS) in (β, γ) plane. Systematics of energy staggering in chiral doublet bands in ^{120,122,124,126,128,130,132}Cs, ^{124,126,128,130,132,134}La, ^{126,128,130,132,134,136}Pr, ^134,136,138Pm.

doi: 10.1103/PhysRevC.97.014305