Nuclear pygmy modes and the dynamics of the nuclear skin
The information on pygmy resonances reveals new aspects on the isospin dynamics of the nucleus with important astrophysical consequences. In this connection, the precise knowledge of nuclear response functions plays a key role in the determination of photonuclear reactions cross sections which are o...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2012-12-01
|
| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20123803002 |
| _version_ | 1818765815966597120 |
|---|---|
| author | Tsoneva Nadia Lenske Horst |
| author_facet | Tsoneva Nadia Lenske Horst |
| author_sort | Tsoneva Nadia |
| collection | DOAJ |
| description | The information on pygmy resonances reveals new aspects on the isospin dynamics of the nucleus with important astrophysical consequences. In this connection, the precise knowledge of nuclear response functions plays a key role in the determination of photonuclear reactions cross sections which are of importance for the synthesis of heavy neutron-rich elements. For that purpose, a theoretical method based on density functional theory and multi-phonon approach is applied for investigations of nuclear excitations with different multipolarities and energies in stable and exotic nuclei. The possible relation of low-energy modes to the properties of neutron or proton skins is systematically investigated for isotonic and isotopic chains. Our studies of dipole and quadrupole response functions and the corresponding transition densities indicate new pygmy dipole and pygmy quadrupole resonances, describing oscillations of the nuclear skin. Also, the presence of skins is found to affect the magnetic response of nuclei. |
| first_indexed | 2024-12-18T08:24:06Z |
| format | Article |
| id | doaj.art-48b35a3dec9e4921b874355a3d21f7fe |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-18T08:24:06Z |
| publishDate | 2012-12-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-48b35a3dec9e4921b874355a3d21f7fe2022-12-21T21:14:40ZengEDP SciencesEPJ Web of Conferences2100-014X2012-12-01380300210.1051/epjconf/20123803002Nuclear pygmy modes and the dynamics of the nuclear skinTsoneva NadiaLenske HorstThe information on pygmy resonances reveals new aspects on the isospin dynamics of the nucleus with important astrophysical consequences. In this connection, the precise knowledge of nuclear response functions plays a key role in the determination of photonuclear reactions cross sections which are of importance for the synthesis of heavy neutron-rich elements. For that purpose, a theoretical method based on density functional theory and multi-phonon approach is applied for investigations of nuclear excitations with different multipolarities and energies in stable and exotic nuclei. The possible relation of low-energy modes to the properties of neutron or proton skins is systematically investigated for isotonic and isotopic chains. Our studies of dipole and quadrupole response functions and the corresponding transition densities indicate new pygmy dipole and pygmy quadrupole resonances, describing oscillations of the nuclear skin. Also, the presence of skins is found to affect the magnetic response of nuclei.http://dx.doi.org/10.1051/epjconf/20123803002 |
| spellingShingle | Tsoneva Nadia Lenske Horst Nuclear pygmy modes and the dynamics of the nuclear skin EPJ Web of Conferences |
| title | Nuclear pygmy modes and the dynamics of the nuclear skin |
| title_full | Nuclear pygmy modes and the dynamics of the nuclear skin |
| title_fullStr | Nuclear pygmy modes and the dynamics of the nuclear skin |
| title_full_unstemmed | Nuclear pygmy modes and the dynamics of the nuclear skin |
| title_short | Nuclear pygmy modes and the dynamics of the nuclear skin |
| title_sort | nuclear pygmy modes and the dynamics of the nuclear skin |
| url | http://dx.doi.org/10.1051/epjconf/20123803002 |
| work_keys_str_mv | AT tsonevanadia nuclearpygmymodesandthedynamicsofthenuclearskin AT lenskehorst nuclearpygmymodesandthedynamicsofthenuclearskin |