Q-phonon description of low lying 1- two-phonon states in spherical nuclei
Abstract
The properties of 1-1 two-phonon states and the characteristics of E1 transition probabilities between low-lying collective states in spherical nuclei are analysed within the Q-phonon approach to the description of collective states. Several relations between observables are obtained. Microscopic calculations of the E1 0+1 -> 1-1 transition matrix elements are performed on the basis of the RPA. A satisfactory description of the experimental data is obtained.
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