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The low spin states of 138 Nd have been reinvestigated via the 124 Te( 19 F,4n1p) reaction at a beam energy of 103 MeV. The quasi-one-phonon γ -vibrational band based on the 1013.7 keV level has been expanded and the quasi-two-phonon γ -vibrational band built on the 1842.7 keV level has been proposed. A systematic comparison supports our assignments for multiphonon γ -vibrational bands in 138 Nd. The characteristics of γ softness in 138 Nd have been discussed. Triaxial projected shell model calculations can well describe the rotational feature of the bands, but they fail to reproduce simultaneously the bandhead energies of the two γ -vibrational bands if a fixed triaxial deformation is assumed.

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High-spin structure of 109 In has been investigated with the 100 Mo( 14 N, 5n) 109 In reaction at a beam energy of 78 MeV using the in-beam γ spectroscopic method. The level scheme of 109 In has been modified considerably and extended by 46 new γ-rays to the highest excited state at 8.979 MeV and J π =(45/2 + ). The new level scheme consists of eight bands, six of which are identified as dipole bands. The configurations have been tentatively assigned with the help of the systematics of neighboring odd-A indium isotopes and the experimental aligned angular momenta. The dipole bands are then compared with the titled axis cranking calculation in the framework of covariant density function theory (TAC-CDFT). The results of theoretical calculation based on the configurations, which involve one proton hole at the g 9/2 orbital and two or four unpaired neutrons at g 7/2 , d 5/2 and h 11/2 orbitals, show that the shape of 109 In undergoes an evolution on both β and γ deformations and possible chirality is suggested in 109 In. ever, chirality in the indium isotopes has not been reported. J Config 1 J core J J x ( ) 0.30 MeV 0.65 MeV J Config 2 J core J J x ( ) 0.20 MeV 0.70 MeV J Config 3 FIG. 9: (Color online) The proton, neutron and core angular momentum vectors (Jπ, Jν and Jcore ) for Config 1-3 in 109 In at both the minimum and the maximum rotational frequencies in the TAC-RMF calculations.

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