Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms
We study the dipole response associated with the Pygmy Dipole Resonance (PDR) and the Isovector Giant Dipole Resonance (IVGDR), in connection with specific properties of the nuclear effective interaction (symmetry energy and momentum dependence), in the neutron-rich systems 68Ni, 132Sn and 208Pb. We...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2016-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/201611707026 |
| _version_ | 1818656076840566784 |
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| author | Zheng H. Colonna M. Baran V. Burrello S. |
| author_facet | Zheng H. Colonna M. Baran V. Burrello S. |
| author_sort | Zheng H. |
| collection | DOAJ |
| description | We study the dipole response associated with the Pygmy Dipole Resonance (PDR) and the Isovector Giant Dipole Resonance (IVGDR), in connection with specific properties of the nuclear effective interaction (symmetry energy and momentum dependence), in the neutron-rich systems 68Ni, 132Sn and 208Pb. We perform our investigation within a microscopic transport model based on the Landau-Vlasov kinetic equation.We observe that the peak energies of PDR and IVGDR are shifted to higher values when employing momentum dependent interactions, with respect to the results obtained neglecting momentum dependence. The calculated energies are close to the experimental values and similar to the results obtained in Hartree-Fock (HF) with Random Phase Approximation (RPA) calculations. |
| first_indexed | 2024-12-17T03:19:50Z |
| format | Article |
| id | doaj.art-06d76ac84e85442480ba7ce795967b5d |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T03:19:50Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-06d76ac84e85442480ba7ce795967b5d2022-12-21T22:05:33ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011170702610.1051/epjconf/201611707026epjconf_nn2016_07026Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanismsZheng H.0Colonna M.1Baran V.2Burrello S.INFN-LNS, Laboratori Nazionali del SudINFN-LNS, Laboratori Nazionali del SudFaculty of Physics, University of BucharestWe study the dipole response associated with the Pygmy Dipole Resonance (PDR) and the Isovector Giant Dipole Resonance (IVGDR), in connection with specific properties of the nuclear effective interaction (symmetry energy and momentum dependence), in the neutron-rich systems 68Ni, 132Sn and 208Pb. We perform our investigation within a microscopic transport model based on the Landau-Vlasov kinetic equation.We observe that the peak energies of PDR and IVGDR are shifted to higher values when employing momentum dependent interactions, with respect to the results obtained neglecting momentum dependence. The calculated energies are close to the experimental values and similar to the results obtained in Hartree-Fock (HF) with Random Phase Approximation (RPA) calculations.http://dx.doi.org/10.1051/epjconf/201611707026 |
| spellingShingle | Zheng H. Colonna M. Baran V. Burrello S. Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms EPJ Web of Conferences |
| title | Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms |
| title_full | Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms |
| title_fullStr | Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms |
| title_full_unstemmed | Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms |
| title_short | Effects of symmetry energy and momentum dependent interaction on low-energy reaction mechanisms |
| title_sort | effects of symmetry energy and momentum dependent interaction on low energy reaction mechanisms |
| url | http://dx.doi.org/10.1051/epjconf/201611707026 |
| work_keys_str_mv | AT zhengh effectsofsymmetryenergyandmomentumdependentinteractiononlowenergyreactionmechanisms AT colonnam effectsofsymmetryenergyandmomentumdependentinteractiononlowenergyreactionmechanisms AT baranv effectsofsymmetryenergyandmomentumdependentinteractiononlowenergyreactionmechanisms AT burrellos effectsofsymmetryenergyandmomentumdependentinteractiononlowenergyreactionmechanisms |