Article
Anharmonic double-phonon excitations in the interacting boson model
Author/s | García Ramos, José Enrique
Arias Carrasco, José Miguel Isacker, Piet van |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2002-12-01 |
Deposit Date | 2017-07-12 |
Published in |
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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 ... 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. |
Funding agencies | Dirección General de Investigación Científica y Técnica (DGICYT). España |
Project ID. | PB98-1111 |
Citation | 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. |
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