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Anharmonic double-phonon excitations in the interacting boson model

 

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Author: García Ramos, José Enrique
Arias Carrasco, José Miguel
Van Isacker, Piet
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2002-12-01
Published in: Physical Review C - Nuclear Physics, 62 (6), 064309-1-064309-13.
Document type: Article
Abstract: Double−γ vibrations in deformed nuclei are analyzed in the context of the interacting boson model. A simple extension of the original version of the model towards higher-order interactions is required to explain the observed anharmonicities of nuclear vibrations. The influence of three- and four-body interactions on the moments of inertia of ground and γ bands, and on the relative position of single−γ and double−γ bands is studied in detail. As an example of a realistic calculation, spectra and transitions of the highly γ−anharmonic nuclei 164Dy, 166Er, and 168Er are interpreted in this approach.
Cite: García Ramos, J.E., Arias Carrasco, J.M. y Van Isacker, P. (2002). Anharmonic double-phonon excitations in the interacting boson model. Physical Review C - Nuclear Physics, 62 (6), 064309-1-064309-13.
Size: 178.7Kb
Format: PDF

URI: http://hdl.handle.net/11441/62440

DOI: 10.1103/PhysRevC.62.064309

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