Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/45425
Title: | Relativistic mean-field interaction with density-dependent meson-nucleon vertices based on microscopical calculations |
Author: | Roca Maza, Xavier Viñas Gausí, Xavier Centelles Aixalà, Mario Ring, Peter, 1941- Schuck, Peter |
Keywords: | Física nuclear Constitució de la matèria Estructura nuclear Mesons (Física nuclear) Nuclear physics Constitution of matter Nuclear structure Mesons (Nuclear physics) |
Issue Date: | 2011 |
Publisher: | American Physical Society |
Abstract: | Although ab initio calculations of relativistic Brueckner theory lead to large scalar isovector fields in nuclear matter, at present, successful versions of covariant density functional theory neglect the interactions in this channel. A new high-precision density functional DD-MEδ is presented which includes four mesons, σ, ω, δ, and ρ, with density-dependent meson-nucleon couplings. It is based to a large extent on microscopic ab initiocalculations in nuclear matter. Only four of its parameters are determined by adjusting to binding energies and charge radii of finite nuclei. The other parameters, in particular the density dependence of the meson-nucleon vertices, are adjusted to nonrelativistic and relativistic Brueckner calculations of symmetric and asymmetric nuclear matter. The isovector effective mass mp*−mn* derived from relativistic Brueckner theory is used to determine the coupling strength of the δ meson and its density dependence. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevC.84.054309 |
It is part of: | Physical Review C, 2011, vol. 84, num. 5, p. 054309-1-054309-16 |
URI: | http://hdl.handle.net/2445/45425 |
Related resource: | http://dx.doi.org/10.1103/PhysRevC.84.054309 |
ISSN: | 0556-2813 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
600443.pdf | 1.03 MB | Adobe PDF | View/Open | |
PhysRevC.93.069905.pdf | Erratum | 35.99 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.