Vortex dipole response in the giant dipole resonance energy region
The velocity fields associated with isovector excitations of spherical nuclei in the giant dipole resonance (GDR) energy region have been studied within a semiclassical approach based on the solution of the Vlasov kinetic equation for finite two-component Fermi systems with a moving surface. The neu...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute for Nuclear Research, National Academy of Sciences of Ukraine
2009-03-01
|
| Series: | Ядерна фізика та енергетика |
| Online Access: | http://jnpae.kinr.kiev.ua/10.1/Articles_PDF/jnpae-2009-10-0020-Abrosimov.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850234524532736000 |
|---|---|
| author | V. I. Abrosimov O. I. Davidovskaya |
| author_facet | V. I. Abrosimov O. I. Davidovskaya |
| author_sort | V. I. Abrosimov |
| collection | DOAJ |
| description | The velocity fields associated with isovector excitations of spherical nuclei in the giant dipole resonance (GDR) energy region have been studied within a semiclassical approach based on the solution of the Vlasov kinetic equation for finite two-component Fermi systems with a moving surface. The neutron-proton asymmetry and dynamical surface effects lead to the fragmentation of the isovector dipole strength in the energy region of the GDR on two resonances. It was found that the velocity field has a potential character in the energy range near the main (low-energy) maximum of the GDR. However, the velocity field reveals a vortex character in the surface region at the energy of the high-energy maximum of the GDR. |
| format | Article |
| id | doaj-art-c5ffe3d8e22c4a54bbcb331e56b1d692 |
| institution | OA Journals |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2009-03-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-c5ffe3d8e22c4a54bbcb331e56b1d6922025-08-20T02:02:37ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652009-03-011012025Vortex dipole response in the giant dipole resonance energy regionV. I. Abrosimov0O. I. Davidovskaya1Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineThe velocity fields associated with isovector excitations of spherical nuclei in the giant dipole resonance (GDR) energy region have been studied within a semiclassical approach based on the solution of the Vlasov kinetic equation for finite two-component Fermi systems with a moving surface. The neutron-proton asymmetry and dynamical surface effects lead to the fragmentation of the isovector dipole strength in the energy region of the GDR on two resonances. It was found that the velocity field has a potential character in the energy range near the main (low-energy) maximum of the GDR. However, the velocity field reveals a vortex character in the surface region at the energy of the high-energy maximum of the GDR.http://jnpae.kinr.kiev.ua/10.1/Articles_PDF/jnpae-2009-10-0020-Abrosimov.pdf |
| spellingShingle | V. I. Abrosimov O. I. Davidovskaya Vortex dipole response in the giant dipole resonance energy region Ядерна фізика та енергетика |
| title | Vortex dipole response in the giant dipole resonance energy region |
| title_full | Vortex dipole response in the giant dipole resonance energy region |
| title_fullStr | Vortex dipole response in the giant dipole resonance energy region |
| title_full_unstemmed | Vortex dipole response in the giant dipole resonance energy region |
| title_short | Vortex dipole response in the giant dipole resonance energy region |
| title_sort | vortex dipole response in the giant dipole resonance energy region |
| url | http://jnpae.kinr.kiev.ua/10.1/Articles_PDF/jnpae-2009-10-0020-Abrosimov.pdf |
| work_keys_str_mv | AT viabrosimov vortexdipoleresponseinthegiantdipoleresonanceenergyregion AT oidavidovskaya vortexdipoleresponseinthegiantdipoleresonanceenergyregion |