Variational calculations of asymmetric nuclear matter
| dc.contributor.author | Lagaris, I. E. | en |
| dc.contributor.author | Pandharipande, V. R. | en |
| dc.date.accessioned | 2015-11-24T17:02:53Z | |
| dc.date.available | 2015-11-24T17:02:53Z | |
| dc.identifier.issn | 0375-9474 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/11107 | |
| dc.rights | Default Licence | - |
| dc.title | Variational calculations of asymmetric nuclear matter | en |
| heal.abstract | We report on variational calculations of the energy E(ρ, β) of asymmetric nuclear matter having ? = ?n + ?p = 0.05 to 0.35 fm?3, and β = (?n ? ?p/g9 = 0 to 1. The nuclear h used in this work consists of a realistic two-nucleon interaction, called v14, that fits the available nucleon-nucleon scattering data up to 425 MeV, and a phenomenological three nucleon interaction adjusted to reproduce the empirical properties of symmetric nuclear matter. The variational many-body theory of symmetric nuclear matter is extended to treat matter with neutron excess. Numerical and analytic studies of the β-dependence of various contributions to the nuclear matter energy show that at ? < 0.35 fm?3 the β4 terms are very small, and that the interaction energy EI(ρ, β) defined as E(ρ, β) ? TF(ρ, β), where TF is the Fermi-gas energy, is well approximated by EI0(?) + β2EI2(ρ). The calculated symmetry energy at equilibrium density is 30 MeV and it increases from 15 to 38 MeV as ? increases from 0.05 to 0.35 fm?3. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1016/0375-9474(81)90032-4 | - |
| heal.journalName | Nuclear Physics A | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1981 | - |
| 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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