Microscopic calculations of the enhancement factor in the electric dipole sum rule
| dc.contributor.author | Fabrocini, A. | en |
| dc.contributor.author | Lagaris, I. E. | en |
| dc.contributor.author | Viviani, M. | en |
| dc.contributor.author | Fantoni, S. | en |
| dc.date.accessioned | 2015-11-24T17:03:05Z | |
| dc.date.available | 2015-11-24T17:03:05Z | |
| dc.identifier.issn | 0370-2693 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/11129 | |
| dc.rights | Default Licence | - |
| dc.title | Microscopic calculations of the enhancement factor in the electric dipole sum rule | en |
| heal.abstract | Correlated basis function perturbation theory with state-dependent correlations is used to calculate the nuclear photoabsorption enhancement factor K in the electric dipole sum rule for some realistic models of nuclear matter. The contribution due to 2p-2h admixtures in the ground state wave function turns out to be only a few percent of the unperturbed value. The values obtained for K are about 1.8 at experimental equilibrium density and increase almost linearly with density. We also give estimates of K for finite nuclei, obtained within the local density approximation framework. The surface effects give a contribution which is ? 20% of the volume term. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1016/0370-2693(85)91608-9 | - |
| heal.journalName | Physics Letters B | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1985 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Ηλεκτρονικών Υπολογιστών και Πληροφορικής | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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