Repozytorium IFJ PAN

Testing the predictive power of realistic shell model calculations via lifetime measurement of the 11/2+ state in 131Sb

Show simple item record Bottoni, S Gamba, E. R. De Gregorio, G. Gargano, A. Leoni, S. Fornal, B. Brancadori, N. Ciconali, G. Crespi, F. C. L. Cieplicka-Oryńczak, N. Iskra, Ł. W. Colombi, G. Kim, Y. H. Köster, U. Michelagnoli, C. Dunkel, F. Esmaylzadeh, A. Gerhard, L. Jolie, J. Knafla, L. Ley, M. Régis, J.-M. Schomaker, K. Sferrazza, M. 2023-07-28T10:23:21Z 2023-07-28T10:23:21Z 2023-01-26
dc.identifier.citation S. Bottoni, E. R. Gamba, G. De Gregorio, A. Gargano, S. Leoni, B. Fornal, N. Brancadori, G. Ciconali, F. C. L. Crespi, N. Cieplicka-Orynczak, L. W. Iskra, G. Colombi, Y. H. Kim, U. Koster, C. Michelagnoli, F. Dunkel, A. Esmaylzadeh, L. Gerhard, J. Jolie, L. Knafla, M. Ley, J.- M. Regis, K. Schomaker, and M. Sferrazza, Phys. Rev. C 107, 014322 (2023). pl_PL.UTF-8
dc.description.abstract The lifetime of the 11/2+ 1 state in the 131Sb nucleus was measured at the LOHENGRIN spectrometer of the Institut Laue-Langevin via neutron-induced fission of 235U using γ -ray fast-timing techniques. The obtained value of T1/2 = 3 (2) ps, at the edge of the sensitivity of the experimental method, is the first result for the 11/2+ 1 state half-life in neutron-rich Sb isotopes. The corresponding quadrupole reduced transition probability to the ground state is B(E2) = 1.4+1.5 −0.6W.u., indicating a noncollective nature of this state. Realistic shell-model calculations performed in a large valence space reproduce well the experimental value and point to a dominant 2+(130Sn) ⊗ πg7/2 configuration for the 11/2+ 1 state, as expected in a weak-coupling scenario. At the same time, the sum of the quadrupole strength of the multiplet states is predicted to exceed the one of the 130Sn core as a consequence of the equal contribution of the proton and the proton-neutron quadrupole matrix elements, pointing to possible development of collectivity already in the close neighborhood of 132Sn. pl_PL.UTF-8
dc.description.sponsorship Italian Istituto Nazionale di Fisica Nucleare, the Polish National Science Centre, Poland, under research project No. 2020/39/D/ST2/03510, the Polish National Agency for Academic Exchange (NAWA) within the Bekker programme under Grant PPN/BEK/2020/1/00431/U/00001, the Institute for Basic Science (IBS-R031-D1), the German DFG under grant JO391/18-1, and the Fonds de la Recherche Scientifique - FNRS under Grants No. J.0174.22 and No. pl_PL.UTF-8
dc.language.iso eng pl_PL.UTF-8
dc.publisher PHYSICAL REVIEW C pl_PL.UTF-8
dc.relation.ispartofseries 107;014322
dc.rights Uznanie autorstwa 4.0 Międzynarodowe *
dc.rights.uri *
dc.subject fizyka jądrowa, spektroskopia gamma, reakcja rozszczepienia pl_PL.UTF-8
dc.subject nuclear physics, gamma spectroscopy, fission reaction pl_PL.UTF-8
dc.title Testing the predictive power of realistic shell model calculations via lifetime measurement of the 11/2+ state in 131Sb pl_PL.UTF-8
dc.type Article pl_PL.UTF-8
dc.identifier.doi 10.1103/PhysRevC.107.014322

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Uznanie autorstwa 4.0 Międzynarodowe Except where otherwise noted, this item's license is described as Uznanie autorstwa 4.0 Międzynarodowe