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Kr-96(36)60-Low-Z Boundary of the Island of Deformation at N=60

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Kr-96(36)60-Low-Z Boundary of the Island of Deformation at N=60

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dc.contributor.author	Dudouet, J.
dc.contributor.author	Lemasson, A.
dc.contributor.author	Duchêne, G.
dc.contributor.author	Rejmund, M.
dc.contributor.author	Clément, E.
dc.contributor.author	Michelagnoli, C.
dc.contributor.author	Didierjean, F.
dc.contributor.author	Korichi, A.
dc.contributor.author	Sanchis Peris, Enrique
dc.contributor.author	González Millán, Vicente
dc.contributor.author	Domingo Pardo, César
dc.contributor.author	Pérez-Vidal, R. M.
dc.contributor.author	Collado, J.
dc.contributor.author	De Angelis, G.
dc.contributor.author	Astier, A.
dc.contributor.author	Delafosse, C.
dc.contributor.author	Deloncle, I.
dc.contributor.author	Dombradi, Z.
dc.contributor.author	de France, G.
dc.contributor.author	Gadea Raga, Andrés
dc.contributor.author	Gottardo, A.
dc.contributor.author	Jacquot, B.
dc.contributor.author	Menegazzo, R.
dc.contributor.author	Konstantinopoulos, T.
dc.contributor.author	Valiente Dobón, J. J.
dc.contributor.author	Recchia, F.
dc.contributor.author	Lenzi, S. M.
dc.contributor.author	Barrientos, D.
dc.contributor.author	Lozeva, R.
dc.contributor.author	Million, B.
dc.contributor.author	Napoli, D. R.
dc.contributor.author	Navin, A.
dc.contributor.author	Petrache, C. M.
dc.contributor.author	Pietralla, N.
dc.contributor.author	Ralet, D.
dc.contributor.author	Ramdhane, M.
dc.contributor.author	Redon, N.
dc.contributor.author	Schmitt, C.
dc.contributor.author	Sohler, D.
dc.contributor.author	Verney, D.
dc.date.accessioned	2018-04-25T14:32:24Z
dc.date.available	2018-04-25T14:32:24Z
dc.date.issued	2017
dc.identifier.citation	Dudouet, J. Lemasson, A. Duchêne, G. Rejmund, M. Clément, E. Michelagnoli, C. Didierjean, F. Korichi, A. Sanchis Peris, Enrique González Millán, Vicente Domingo Pardo, César Pérez-Vidal, R. M. Collado, J. De Angelis, G. Astier, A. Delafosse, C. Deloncle, I. Dombradi, Z. de France, G. Gadea Raga, Andrés Gottardo, A. Jacquot, B. Menegazzo, R. Konstantinopoulos, T. Valiente Dobón, J. J. Recchia, F. Lenzi, S. M. Barrientos, D. Lozeva, R. Million, B. Napoli, D. R. Navin, A. Petrache, C. M. Pietralla, N. Ralet, D. Ramdhane, M. Redon, N. Schmitt, C. Sohler, D. Verney, D. 2017 Kr-96(36)60-Low-Z Boundary of the Island of Deformation at N=60 Physical Review Letters 118 16 162501 - 1pp 162501 - 6pp
dc.identifier.uri	http://hdl.handle.net/10550/65855
dc.description.abstract	Prompt.-ray spectroscopy of the neutron-rich Kr-96, produced in transfer-and fusion-induced fission reactions, has been performed using the combination of the Advanced Gamma Tracking Array and the VAMOS + +spectrometer. A second excited state, assigned to J pi = 4(+), is observed for the first time, and a previously reported level energy of the first 2+ excited state is confirmed. The measured energy ratio R-4/2 = E(4(+))/E(2(+)) = 2.12(1) indicates that this nucleus does not show a well-developed collectivity contrary to that seen in heavier N = 60 isotones. This new measurement highlights an abrupt transition of the degree of collectivity as a function of the proton number at Z = 36, of similar amplitude to that observed at N = 60 at higher Z values. A possible reason for this abrupt transition could be related to the insufficient proton excitations in the g(9/2), d(5/2), and s(1/2) orbitals to generate strong quadrupole correlations or to the coexistence of competing different shapes. An unexpected continuous decrease of R-4/2 as a function of the neutron number up to N = 60 is also evidenced. This measurement establishes the Kr isotopic chain as the low-Z boundary of the island of deformation for N = 60 isotones. A comparison with available theoretical predictions using different beyond mean-field approaches shows that these models fail to reproduce the abrupt transitions at N = 60 and Z = 36.
dc.language.iso	eng
dc.relation.ispartof	Physical Review Letters, 2017, vol. 118, num. 16, p. 162501 - 1pp-162501 - 6pp
dc.subject	Espectroscòpia de ressonància magnètica nuclear
dc.subject	Física nuclear
dc.title	Kr-96(36)60-Low-Z Boundary of the Island of Deformation at N=60
dc.type	journal article	es_ES
dc.date.updated	2018-04-25T14:32:25Z
dc.identifier.doi	10.1103/PhysRevLett.118.162501
dc.identifier.idgrec	120320
dc.rights.accessRights	open access	es_ES