Lifetime measurements of excited states in Pt 172 and the variation of quadrupole transition strength with angular momentum
dc.date.accessioned | 2019-03-05T16:23:28Z | |
dc.date.available | 2019-03-05T16:23:28Z | |
dc.date.created | 2019-02-09T16:22:45Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Cederwall, Bo Doncel-Monasterio, Maria Aktaş, Özge Ertoprak, Aysegul Liotta, Roberto Qi, Chong Grahn, Tuomas Cullen, David M. Hodge, Duncan M. Giles, Martin F. Stolze, Sanna Badran, Hussam Braunroth, Thomas Calverley, Tom Cox, Daniel Martin Fang, Yongde Greenlees, Paul T. Hilton, Jeremiah Ideguchi, Eiji Julin, Rauno Juutinen, Sakari Raju, M. Kumar Li, Hongjie Liu, Haichun Matta, Samuel Modamio, Victor Pakarinen, Janne Papadakis, Philippos Partanen, Jari Petrache, Costel M. Rahkila, Panu Ruotsalainen, Panu Sandzelius, Mikael Sarén, Jan Scholey, Cath S. Sorri, Juha Subramaniam, Pranav Taylor, Michael J. Uusitalo, Juha Valiente-Dobón, Jose Javier . Lifetime measurements of excited states in Pt 172 and the variation of quadrupole transition strength with angular momentum. Physical Review Letters. 2018, 121:022502(2), 1-12 | |
dc.identifier.uri | http://hdl.handle.net/10852/67068 | |
dc.description.abstract | Lifetimes of the first excited 2þ and 4þ states in the extremely neutron-deficient nuclide 172Pt have been measured for the first time using the recoil-distance Doppler shift and recoil-decay tagging techniques. An unusually low value of the ratio BðE2∶4þ 1 → 2þ 1 Þ=BðE2∶2þ 1 → 0þ gsÞ ¼ 0.55ð19Þ was found, similar to a handful of other such anomalous cases observed in the entire Segr´e chart. The observation adds to a cluster of a few extremely neutron-deficient nuclides of the heavy transition metals with neutron numbers N ≈ 90–94 featuring the effect. No theoretical model calculations reported to date have been able to explain the anomalously low BðE2∶4þ 1 → 2þ 1 Þ=BðE2∶2þ 1 → 0þ gsÞ ratios observed in these cases. Such low values cannot, e.g., be explained within the framework of the geometrical collective model or by algebraic approaches within the interacting boson model framework. It is proposed that the group of BðE2∶4þ 1 → 2þ 1 Þ=BðE2∶2þ 1 → 0þ gs) ratios in the extremely neutron-deficient even-even W, Os, and Pt nuclei around neutron numbers N ≈ 90–94 reveal a quantum phase transition from a seniority-conserving structure to a collective regime as a function of neutron number. Although a system governed by seniority symmetry is the only theoretical framework for which such an effect may naturally occur, the phenomenon is highly unexpected for these nuclei that are not situated near closed shells. | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.title | Lifetime measurements of excited states in Pt 172 and the variation of quadrupole transition strength with angular momentum | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Cederwall, Bo | |
dc.creator.author | Doncel-Monasterio, Maria | |
dc.creator.author | Aktaş, Özge | |
dc.creator.author | Ertoprak, Aysegul | |
dc.creator.author | Liotta, Roberto | |
dc.creator.author | Qi, Chong | |
dc.creator.author | Grahn, Tuomas | |
dc.creator.author | Cullen, David M. | |
dc.creator.author | Hodge, Duncan M. | |
dc.creator.author | Giles, Martin F. | |
dc.creator.author | Stolze, Sanna | |
dc.creator.author | Badran, Hussam | |
dc.creator.author | Braunroth, Thomas | |
dc.creator.author | Calverley, Tom | |
dc.creator.author | Cox, Daniel Martin | |
dc.creator.author | Fang, Yongde | |
dc.creator.author | Greenlees, Paul T. | |
dc.creator.author | Hilton, Jeremiah | |
dc.creator.author | Ideguchi, Eiji | |
dc.creator.author | Julin, Rauno | |
dc.creator.author | Juutinen, Sakari | |
dc.creator.author | Raju, M. Kumar | |
dc.creator.author | Li, Hongjie | |
dc.creator.author | Liu, Haichun | |
dc.creator.author | Matta, Samuel | |
dc.creator.author | Modamio, Victor | |
dc.creator.author | Pakarinen, Janne | |
dc.creator.author | Papadakis, Philippos | |
dc.creator.author | Partanen, Jari | |
dc.creator.author | Petrache, Costel M. | |
dc.creator.author | Rahkila, Panu | |
dc.creator.author | Ruotsalainen, Panu | |
dc.creator.author | Sandzelius, Mikael | |
dc.creator.author | Sarén, Jan | |
dc.creator.author | Scholey, Cath S. | |
dc.creator.author | Sorri, Juha | |
dc.creator.author | Subramaniam, Pranav | |
dc.creator.author | Taylor, Michael J. | |
dc.creator.author | Uusitalo, Juha | |
dc.creator.author | Valiente-Dobón, Jose Javier | |
cristin.unitcode | 185,15,4,20 | |
cristin.unitname | Kjerne- og energifysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1675207 | |
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=121:022502&rft.spage=1&rft.date=2018 | |
dc.identifier.jtitle | Physical Review Letters | |
dc.identifier.volume | 121:022502 | |
dc.identifier.issue | 2 | |
dc.identifier.startpage | 1 | |
dc.identifier.endpage | 12 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevLett.121.022502 | |
dc.identifier.urn | URN:NBN:no-70218 | |
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/10852/67068/2/PhysRevLett.121.022502.pdf | |
dc.type.version | PublishedVersion |
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