Intrinsic structure of two-phonon states in the interacting boson model

Abstract

A general study of excitations up to two-phonon states is carried out using the intrinsic-state formalism of the Interacting Boson Model (IBM). Spectra and transitions for the different dynamical symmetries are analyzed and the correspondence with states in the laboratory frame is established. The influence of multi-phonon states is discussed. The approach is useful in problems where the complexity of the IBM spectrum renders the analysis in the laboratory frame difficult.

22 pages, TeX (ReVTeX). 7 eps figures. Submitted to Nucl. Phys. A

Cited by in corpus (8)

• Phase structure of a two-fluid bosonic system
• Two-level interacting boson models beyond the mean field
• Two-neutron separation energies, binding energies and phase transitions in the interacting boson model
• Application of the coherent state formalism to multiply excited states
• Anharmonic double-phonon excitations in the interacting boson model
• Regularities and symmetries of subsets of collective 0+ states
• Anharmonic double-$\gamma$ vibrations in nuclei and their description in the interacting boson model
• An overview of the scientific contribution of Andrea Vitturi to Nuclear Physics (being an account of the recent TNP19 meeting held in Padova)