Markova, M. ; Neumann-Cosel, P. von ; Larsen, A. C. ; Bassauer, S. ; Görgen, A. ; Guttormsen, M. ; Bello Garrote, F. L. ; Berg, H. C. ; Bjørøen, M. M. ; Dahl-Jacobsen, T. ; Eriksen, T. K. ; Gjestvang, D. ; Isaak, J. ; Mbabane, M. ; Paulsen, W. ; Pedersen, L. G. ; Pettersen, N. I. J. ; Richter, A. ; Sahin, E. ; Scholz, P. ; Siem, S. ; Tveten, G. M. ; Valsdottir, V. M. ; Wiedeking, M. ; Zeiser, F. (2021)
Comprehensive Test of the Brink-Axel Hypothesis in the Energy Region of the Pygmy Dipole Resonance.
In: Physical Review Letters, 127 (18)
doi: 10.1103/physrevlett.127.182501
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The validity of the Brink-Axel hypothesis, which is especially important for numerous astrophysical calculations, is addressed for 116,120,124Sn below the neutron separation energy by means of three independent experimental methods. The γ-ray strength functions (GSFs) extracted from primary γ-decay spectra following charged-particle reactions with the Oslo method and with the shape method demonstrate excellent agreement with those deduced from forward-angle inelastic proton scattering at relativistic beam energies. In addition, the GSFs are shown to be independent of excitation energies and spins of the initial and final states. The results provide a critical test of the generalized Brink-Axel hypothesis in heavy nuclei, demonstrating its applicability in the energy region of the pygmy dipole resonance.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Markova, M. ; Neumann-Cosel, P. von ; Larsen, A. C. ; Bassauer, S. ; Görgen, A. ; Guttormsen, M. ; Bello Garrote, F. L. ; Berg, H. C. ; Bjørøen, M. M. ; Dahl-Jacobsen, T. ; Eriksen, T. K. ; Gjestvang, D. ; Isaak, J. ; Mbabane, M. ; Paulsen, W. ; Pedersen, L. G. ; Pettersen, N. I. J. ; Richter, A. ; Sahin, E. ; Scholz, P. ; Siem, S. ; Tveten, G. M. ; Valsdottir, V. M. ; Wiedeking, M. ; Zeiser, F. |
| Art des Eintrags: | Bibliographie |
| Titel: | Comprehensive Test of the Brink-Axel Hypothesis in the Energy Region of the Pygmy Dipole Resonance |
| Sprache: | Deutsch |
| Publikationsjahr: | 29 Oktober 2021 |
| Verlag: | APS |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review Letters |
| Jahrgang/Volume einer Zeitschrift: | 127 |
| (Heft-)Nummer: | 18 |
| DOI: | 10.1103/physrevlett.127.182501 |
| Kurzbeschreibung (Abstract): | The validity of the Brink-Axel hypothesis, which is especially important for numerous astrophysical calculations, is addressed for 116,120,124Sn below the neutron separation energy by means of three independent experimental methods. The γ-ray strength functions (GSFs) extracted from primary γ-decay spectra following charged-particle reactions with the Oslo method and with the shape method demonstrate excellent agreement with those deduced from forward-angle inelastic proton scattering at relativistic beam energies. In addition, the GSFs are shown to be independent of excitation energies and spins of the initial and final states. The results provide a critical test of the generalized Brink-Axel hypothesis in heavy nuclei, demonstrating its applicability in the energy region of the pygmy dipole resonance. |
| Freie Schlagworte: | Deutsche Forschungsgemeinschaft, DFG, German Research Foundation, SFB 1245, Project-ID 279384907 |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1245: Atomkerne von fundamentalen Wechselwirkungen zu Struktur und Sternen 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Experimentelle Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Experimentelle Kernphysik > Experimentelle Kernstruktur und S-DALINAC |
| Hinterlegungsdatum: | 15 Nov 2023 08:35 |
| Letzte Änderung: | 05 Jan 2024 11:00 |
| PPN: | 51447629X |
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