Preliminary results are presented from a recent campaign of experiments, performed at the PF1B cold-neutron facility at ILL (Grenoble, France), in which-ray spectroscopy of neutron-rich nuclei produced in neutron induced fission on <sup>235</sup>U and <sup>241</sup>Pu targets was performed. By using the EXILL array, consisting of EXOGAM, GASP and ILL-Clover detectors, and a digital triggerless data acquisition system, γ coincidences over several microseconds time windows were studied. This allowed to obtain new information on nuclei around <sup>132</sup>Sn, such as <sup>132</sup>Te, <sup>133</sup>Sb and <sup>130</sup>Sn, in which microsecond isomeric states occur. Preliminary results on <sup>210</sup>Bi, populated by cold-neutron capture, are also shown. The data offer the possibility to investigate the couplings between core excitations and valence particles, around the doubly magic nuclei <sup>132</sup>Sn and <sup>208</sup>Pb.
Particle-core couplings close to neutron-rich doubly-magic nuclei / S. Leoni, G. Bocchi, S. Bottoni, D. Bazzacco, N. Cieplicka, B. Fornal, B. Szpak, C. Michelagnoli, A. Blanc, G. De France, M. Jentschel, U.K. Lozeva, P. Mutti, T. Soldner, G. Simpson, C. Ur, W. Urban. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - 46:3(2015 Mar), pp. 637-646. ((Intervento presentato al convegno Zakopane Conference on Nuclear Physics : Extremes of the Nuclear Landscape : August, 31st - September, 7th tenutosi a Zakopane (Poland) nel 2014 [10.5506/APhysPolB.46.637].
Particle-core couplings close to neutron-rich doubly-magic nuclei
S. Leoni;G. Bocchi;S. Bottoni;
2015
Abstract
Preliminary results are presented from a recent campaign of experiments, performed at the PF1B cold-neutron facility at ILL (Grenoble, France), in which-ray spectroscopy of neutron-rich nuclei produced in neutron induced fission on 235U and 241Pu targets was performed. By using the EXILL array, consisting of EXOGAM, GASP and ILL-Clover detectors, and a digital triggerless data acquisition system, γ coincidences over several microseconds time windows were studied. This allowed to obtain new information on nuclei around 132Sn, such as 132Te, 133Sb and 130Sn, in which microsecond isomeric states occur. Preliminary results on 210Bi, populated by cold-neutron capture, are also shown. The data offer the possibility to investigate the couplings between core excitations and valence particles, around the doubly magic nuclei 132Sn and 208Pb.
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