dc.date.accessioned | 2019-02-19T14:13:06Z | |
dc.date.available | 2019-02-19T14:13:06Z | |
dc.date.created | 2016-10-25T19:55:44Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Spyrou, Artemis Liddick, Sean N. Naqvi, Farheen Crider, Benjamin P. Dombos, Alexander C. Bleuel, Darren L. Brown, B.Alex Couture, Aaron J. Crespo Campo, Lucia Guttormsen, Magne Sveen Larsen, Ann-Cecilie Lewis, Rebecca Möller, P. Mosby, Shea Mumpower, Matthew R. Perdikakis, Georgios Prokop, C. J. Renstrøm, Therese Siem, Sunniva Quinn, S. J. Valenta, S . Strong Neutron-γ Competition above the Neutron Threshold in the Decay of 70Co. Physical Review Letters. 2016, 117(14) | |
dc.identifier.uri | http://hdl.handle.net/10852/66656 | |
dc.description.abstract | The β-decay intensity of 70Co was measured for the first time using the technique of total absorption spectroscopy. The large β-decay Q value [12.3(3) MeV] offers a rare opportunity to study β-decay properties in a broad energy range. Two surprising features were observed in the experimental results, namely, the large fragmentation of the β intensity at high energies, as well as the strong competition between γ rays and neutrons, up to more than 2 MeV above the neutron-separation energy. The data are compared to two theoretical calculations: the shell model and the quasiparticle random phase approximation (QRPA). Both models seem to be missing a significant strength at high excitation energies. Possible interpretations of this discrepancy are discussed. The shell model is used for a detailed nuclear structure interpretation and helps to explain the observed γ-neutron competition. The comparison to the QRPA calculations is done as a means to test a model that provides global β-decay properties for astrophysical calculations. Our work demonstrates the importance of performing detailed comparisons to experimental results, beyond the simple half-life comparisons. A realistic and robust description of the β-decay intensity is crucial for our understanding of nuclear structure as well as of r-process nucleosynthesis. | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.title | Strong Neutron-γ Competition above the Neutron Threshold in the Decay of 70Co | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Spyrou, Artemis | |
dc.creator.author | Liddick, Sean N. | |
dc.creator.author | Naqvi, Farheen | |
dc.creator.author | Crider, Benjamin P. | |
dc.creator.author | Dombos, Alexander C. | |
dc.creator.author | Bleuel, Darren L. | |
dc.creator.author | Brown, B.Alex | |
dc.creator.author | Couture, Aaron J. | |
dc.creator.author | Crespo Campo, Lucia | |
dc.creator.author | Guttormsen, Magne Sveen | |
dc.creator.author | Larsen, Ann-Cecilie | |
dc.creator.author | Lewis, Rebecca | |
dc.creator.author | Möller, P. | |
dc.creator.author | Mosby, Shea | |
dc.creator.author | Mumpower, Matthew R. | |
dc.creator.author | Perdikakis, Georgios | |
dc.creator.author | Prokop, C. J. | |
dc.creator.author | Renstrøm, Therese | |
dc.creator.author | Siem, Sunniva | |
dc.creator.author | Quinn, S. J. | |
dc.creator.author | Valenta, S | |
cristin.unitcode | 185,15,4,0 | |
cristin.unitname | Fysisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1394517 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review Letters&rft.volume=117&rft.spage=&rft.date=2016 | |
dc.identifier.jtitle | Physical Review Letters | |
dc.identifier.volume | 117 | |
dc.identifier.issue | 14 | |
dc.identifier.pagecount | 6 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevLett.117.142701 | |
dc.identifier.urn | URN:NBN:no-69855 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0031-9007 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/66656/2/Spyrou_PhysRevLett.117.142701.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 142701 | |