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.

16 pages, 2 figures, 9 tables

References in corpus (1)

• Interrelation between the isoscalar octupole phonon and the proton-neutron mixed-symmetry quadrupole phonon in near spherical nuclei

Cited by in corpus (6)

• Relativistic two-phonon model for low-energy nuclear response
• Origin of Low-Lying Enhanced E1 Strength in Rare-Earth Nuclei
• The decay of quadrupole-octupole $1^{-}$ states in ${}^{40}$Ca and ${}^{140}$Ce
• On neutron number dependence of B(E1;0+ --> 1-) reduced transition probability
• Investigation of the properties of $1_1^{-}$ excited states of even-even nuclei
• Analysis of correlations between dipole transitions $1_1^{-}\to 0_1^{+}$ and $3_1^{-}\to 2_1^{+}$ based on the collective model