dc.date.accessioned | 2019-02-19T14:26:56Z | |
dc.date.available | 2019-02-19T14:26:56Z | |
dc.date.created | 2015-08-28T01:12:35Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Bello Garrote, Frank Leonel Görgen, Andreas Mierzejewski, Jan Mihai, Corina Mihaela Delaroche, Jean Paul Girod, Michel Libert, Jacques J. Sahin, Eda Srebrny, Julian Abraham, Theodore J. Eriksen, Tomas Kvalheim Giacoppo, Francesca Hagen, Trine Wiborg Kisieliński, Maciej Klintefjord, Malin Komorowska, Małgorzata Kowalczyk, Maciej Larsen, Ann-Cecilie Marchlewski, Tomasz Mitu, Iani Octavian Pascu, Sorin Siem, Sunniva Stolarz, Anna Tornyi, Tamas Gabor . Lifetime measurement for the 21+ state in Sm 140 and the onset of collectivity in neutron-deficient Sm isotopes. Physical Review C. Nuclear Physics. 2015, 92:024317(2) | |
dc.identifier.uri | http://hdl.handle.net/10852/66659 | |
dc.description.abstract | Background: The chain of Sm isotopes exhibits a wide range of nuclear shapes and collective behavior. While the onset of deformation for N > 82 has been well studied both experimentally and theoretically, fundamental data is lacking for some Sm isotopes with N < 82.
Purpose: Electromagnetic transition rates represent a sensitive test of theoretical nuclear structure models. Lifetime measurements are furthermore complementary to Coulomb excitation experiments, and the two methods together can give access to spectroscopic quadrupole moments.
Method: The lifetime of the 2+ 1 state in 140Sm was measured with the recoil-distance Doppler shift technique using the reaction 124Te( 20Ne, 4n) 140Sm at 82 MeV. Theoretical calculations were performed based on a mapped collective Hamiltonian in five quadrupole coordinates (5DCH) and the Gogny D1S interaction.
Results: The lifetime of the 2+ 1 state in 140Sm was found to be 9.1(6) ps, corresponding to aB(E2; 2+ 1 → 0+ 1 ) value of 51(4) Weisskopf units. The theoretical calculations are in very good agreement with the experimental result.
Conclusions: The B(E2; 2+ 1 → 0+ 1 ) value for 140Sm fits smoothly into the systematic trend for the chain of Sm isotopes. The new beyond-mean field calculations are able to correctly describe the onset of collectivity in the Sm isotopes below the N = 82 shell closure for the first time. | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.title | Lifetime measurement for the 21+ state in Sm 140 and the onset of collectivity in neutron-deficient Sm isotopes | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Bello Garrote, Frank Leonel | |
dc.creator.author | Görgen, Andreas | |
dc.creator.author | Mierzejewski, Jan | |
dc.creator.author | Mihai, Corina Mihaela | |
dc.creator.author | Delaroche, Jean Paul | |
dc.creator.author | Girod, Michel | |
dc.creator.author | Libert, Jacques J. | |
dc.creator.author | Sahin, Eda | |
dc.creator.author | Srebrny, Julian | |
dc.creator.author | Abraham, Theodore J. | |
dc.creator.author | Eriksen, Tomas Kvalheim | |
dc.creator.author | Giacoppo, Francesca | |
dc.creator.author | Hagen, Trine Wiborg | |
dc.creator.author | Kisieliński, Maciej | |
dc.creator.author | Klintefjord, Malin | |
dc.creator.author | Komorowska, Małgorzata | |
dc.creator.author | Kowalczyk, Maciej | |
dc.creator.author | Larsen, Ann-Cecilie | |
dc.creator.author | Marchlewski, Tomasz | |
dc.creator.author | Mitu, Iani Octavian | |
dc.creator.author | Pascu, Sorin | |
dc.creator.author | Siem, Sunniva | |
dc.creator.author | Stolarz, Anna | |
dc.creator.author | Tornyi, Tamas Gabor | |
cristin.unitcode | 185,15,4,0 | |
cristin.unitname | Fysisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 0 | |
dc.identifier.cristin | 1260450 | |
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 C. Nuclear Physics&rft.volume=92:024317&rft.spage=&rft.date=2015 | |
dc.identifier.jtitle | Physical Review C. Nuclear Physics | |
dc.identifier.volume | 92:024317 | |
dc.identifier.issue | 2 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevC.92.024317 | |
dc.identifier.urn | URN:NBN:no-69835 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0556-2813 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/66659/2/BelloGarrote_PhysRevC.92.024317.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 024317 | |