Magnetic Properties of Excited States of the 156Gd Nucleus

Theoretical calculations are made for the 156Gd nucleus using a phenomenological model with allowance for the Coriolis mixing of states of low-lying rotational bands of positive parity. The Coriolis interaction can be used to explain effects of non-adiabaticity observed in the properties of excited states. Reduced probabilities B(M1) of M1 transitions are calculated along with coefficients $$\delta ({{E{\text{2}}} \mathord{\left/ {\vphantom {{E{\text{2}}} {M{\text{1}}}}} \right. \kern-0em} {M{\text{1}}}})$$ of multipole mixing for transitions from vibrational states. Patterns of change in the probabilities of M1 transitions from states of mixing bands are studied, depending on the total angular momentum. Satisfactory agreement is obtained between theoretical and experimental data.

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