The particle-rotor model has been applied to calculate the band structure in a number of highly neutron deficient odd-A rare-earth nuclei in the A = 130 -150 region. Several transitional nuclei are also included in the study. The only adjustable parameter, used in the calculation, is the Coriolis attenuation coeScient. However, it is seen that the observed band structures in these nuclei can be reproduced practically without any ad hoc reduction of the Coriolis matrix elements. The systematics of the Coriolis attenuation in the neutron-deficient, transitional, and well-deformed rare-earth nuclei are discussed in the light of the present work and several theoretical studies, made earlier.The importance of the pairing interaction in the Coriolis attenuation study is emphasized.
The high spin states of 103 Ag have been populated through the 76 Ge( 35 Cl,␣4n␥) 103 Ag reaction using 132-MeV 35 Cl beam. The presence of a positive parity ground state band and two negative parity bands decaying predominantly by M1 transitions in 103 Ag has been confirmed. In addition, seven new crossover E2 transitions have been observed in the negative parity bands. The experimental B(M 1)/B(E2) ratios are compared with the values obtained from the Dönau geometric formula for the negative parity bands based on single particle configurations assigned from signature arguments. These ratios are also compared to those obtained from the hybrid version of tilted axis cranking. A systematic study of odd-Ag isotopes seems to indicate that the signature symmetry is retained in 103 Ag due to the shallow tilted minimum.
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