Beck, T. ; Beller, J. ; Pietralla, N. ; Bhike, M. ; Birkhan, J. ; Derya, V. ; Gayer, U. ; Hennig, A. ; Isaak, J. ; Löher, B. ; Ponomarev, V. Yu. ; Richter, A. ; Romig, C. ; Savran, D. ; Scheck, M. ; Tornow, W. ; Werner, V. ; Zilges, A. ; Zweidinger, M. (2017)
E2 decay strength of the M1 scissors mode of Gd-156 and its first excited rotational state.
In: Physical Review Letters, 118 (21)
doi: 10.1103/PhysRevLett.118.212502
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The E2/M1 multipole mixing ratio δ1→2 of the 1+sc→2+1 γ-ray decay in 156Gd and hence the isovector E2 transition rate of the scissors mode of a well-deformed rotational nucleus has been measured for the first time. It has been obtained from the angular distribution of an artificial quasimonochromatic linearly polarized γ-ray beam of energy 3.07(6) MeV scattered inelastically off an isotopically highly enriched 156Gd target. The data yield first direct support for the deformation dependence of effective proton and neutron quadrupole boson charges in the framework of algebraic nuclear models. First evidence for a low-lying Jπ=2+ member of the rotational band of states on top of the 1+ band head is obtained, too, indicating a significant signature splitting in the K=1 scissors mode rotational band.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Beck, T. ; Beller, J. ; Pietralla, N. ; Bhike, M. ; Birkhan, J. ; Derya, V. ; Gayer, U. ; Hennig, A. ; Isaak, J. ; Löher, B. ; Ponomarev, V. Yu. ; Richter, A. ; Romig, C. ; Savran, D. ; Scheck, M. ; Tornow, W. ; Werner, V. ; Zilges, A. ; Zweidinger, M. |
| Art des Eintrags: | Bibliographie |
| Titel: | E2 decay strength of the M1 scissors mode of Gd-156 and its first excited rotational state |
| Sprache: | Englisch |
| Publikationsjahr: | 26 Mai 2017 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review Letters |
| Jahrgang/Volume einer Zeitschrift: | 118 |
| (Heft-)Nummer: | 21 |
| DOI: | 10.1103/PhysRevLett.118.212502 |
| Kurzbeschreibung (Abstract): | The E2/M1 multipole mixing ratio δ1→2 of the 1+sc→2+1 γ-ray decay in 156Gd and hence the isovector E2 transition rate of the scissors mode of a well-deformed rotational nucleus has been measured for the first time. It has been obtained from the angular distribution of an artificial quasimonochromatic linearly polarized γ-ray beam of energy 3.07(6) MeV scattered inelastically off an isotopically highly enriched 156Gd target. The data yield first direct support for the deformation dependence of effective proton and neutron quadrupole boson charges in the framework of algebraic nuclear models. First evidence for a low-lying Jπ=2+ member of the rotational band of states on top of the 1+ band head is obtained, too, indicating a significant signature splitting in the K=1 scissors mode rotational band. |
| Freie Schlagworte: | Deutsche Forschungsgemeinschaft, DFG, German Research Foundation, SFB 1245, Project-ID 279384907, BMBF, Grant No. 05P15RDEN |
| Zusätzliche Informationen: | Art.No.: 212502 |
| 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: | 20 Dez 2023 11:23 |
| Letzte Änderung: | 13 Feb 2024 09:17 |
| PPN: | 515524778 |
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