Bastian Löher, Deniz Savran, Thomas Aumann, Jacob Daniel Beller, Megha Bhike, Nathan L. Cooper, Vera Derya, Marc Duchêne, Janis Endres, Andreas Hennig, P. Humby, Johann Isaak, John H. Kelley, Michael Knörzer, Norbert Pietralla, Vladimir Yu. Ponomarev, Christopher Romig, Marcus Scheck, Heiko Scheit, Joel Silva, Anton P. Tonchev, Werner Tornow, Felix Wamers, Henry R. Weller, Volker Werner, Andreas Zilges
- The decay properties of the Pygmy Dipole Resonance (PDR) have been investigated in the semi-magic N=82 nucleus 140Ce using a novel combination of nuclear resonance fluorescence and γ–γ coincidence techniques. Branching ratios for transitions to low-lying excited states are determined in a direct and model-independent way both for individual excited states and for excitation energy intervals. Comparison of the experimental results to microscopic calculations in the quasi-particle phonon model exhibits an excellent agreement, supporting the observation that the Pygmy Dipole Resonance couples to the ground state as well as to low-lying excited states. A 10% mixing of the PDR and the [21+ x PDR] is extracted.
Metadaten| Author: | Bastian LöherORCiDGND, Deniz SavranORCiDGND, Thomas AumannORCiDGND, Jacob Daniel BellerGND, Megha Bhike, Nathan L. Cooper, Vera DeryaGND, Marc DuchêneGND, Janis EndresGND, Andreas HennigGND, P. Humby, Johann IsaakORCiDGND, John H. KelleyORCiDGND, Michael KnörzerGND, Norbert PietrallaORCiDGND, Vladimir Yu. PonomarevGND, Christopher RomigGND, Marcus ScheckORCiDGND, Heiko ScheitORCiDGND, Joel SilvaGND, Anton P. TonchevORCiDGND, Werner TornowORCiDGND, Felix WamersGND, Henry R. WellerGND, Volker WernerORCiDGND, Andreas ZilgesORCiDGND |
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| URN: | urn:nbn:de:hebis:30:3-628617 |
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| DOI: | https://doi.org/10.1016/j.physletb.2016.02.042 |
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| ISSN: | 1873-2445 |
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| Parent Title (English): | Physical letters. B |
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| Publisher: | North-Holland Publ. |
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| Place of publication: | Amsterdam |
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| Document Type: | Article |
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| Language: | English |
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| Date of Publication (online): | 2016/02/23 |
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| Date of first Publication: | 2016/02/23 |
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| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
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| Release Date: | 2022/11/08 |
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| Tag: | 140Ce; Coincidence measurement; Nuclear resonance fluorescence; Pygmy Dipole Resonance; Quasi-particle phonon model; γ-ray spectroscopy |
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| Volume: | 756 |
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| Page Number: | 5 |
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| First Page: | 72 |
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| Last Page: | 76 |
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| Note: | The work described in this article is supported by the Alliance Program of the Helmholtz Association (HA216/EMMI), the DFG (SFB 1245 and ZI510/7-1) and U.S. DOE grants No. DE-FG02-91ER-40609 and No. DE-FG02-97ER-41033. |
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| Note: | Funded by SCOAP3. |
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| HeBIS-PPN: | 505637979 |
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| Institutes: | Physik |
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| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) |
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| Forschungscluster / ELEMENTS |
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| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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| Sammlungen: | Universitätspublikationen |
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| Licence (German): |  Creative Commons - Namensnennung 4.0 |
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Creative Commons - Namensnennung 4.0