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Andreyev, A. N.*; Huyse, M.*; Van Duppen, P.*; Qi, C.*; Liotta, R. J.*; Antalic, S.*; Ackermann, D.*; Franchoo, S.*; Heberger, F. P.*; Hofmann, S.*; et al.
Physical Review Letters, 110(24), p.242502_1 - 242502_5, 2013/06
被引用回数:90 パーセンタイル:93.85(Physics, Multidisciplinary)-decay data for more than 20 nuclei of the most neutron-deificient isotopes in the region from lead to thorium was obtained. The combined analysis allowed us for the first time to clearly show that crossing the Z=82 shell to higher proton numbers strongly accelerates the decay. The analysis support the conjecture that both the N=126 and Z=82 shell closures stongly influence the -formation probability.
Andreyev, A. N.*; Antalic, S.*; Ackermann, D.*; Franchoo, S.*; Heberger, F. P.*; Hofmann, S.*; Huyse, M.*; Kojouharov, I.*; Kindler, B.*; Kuusiniemi, P.*; et al.
Physical Review C, 73(4), p.044324_1 - 044324_8, 2006/04
被引用回数:37 パーセンタイル:86.81(Physics, Nuclear)The new neutron-deficient isotope Po has been identified in the complete fusion reaction Ti+Sm Po+3n at the velocity filter SHIP of GSI. Striking features of the Po decay are the strongly-hindered decay to the spherical ground state and unhindered decay to a surprisingly low-lying deformed excited state at 286 keV in the daughter nucleus Pb. Based on the potential energy surface calculations, the Po ground state and the 286 keV excited state in Pb were interpreted as being of prolate origin.
Andreyev, A. N.*; Antalic, S.*; Ackermann, D.*; Franchoo, S.*; Heberger, F. P.*; Hofmann, S.*; Huyse, M.*; Kojouharov, I.*; Kindler, B.*; Kuusiniemi, P.*; et al.
Physical Review C, 73(2), p.024317_1 - 024317_11, 2006/02
被引用回数:27 パーセンタイル:81.23(Physics, Nuclear)Decay properties of the new neutron-deficient nuclide At have been studied in the complete fusion reaction Sm(V,3n)At at the velocity filter SHIP of GSI. Two isomeric states with half-lives of 88(6) ms and 11.5(6) ms, respectively, and with complex -decay schemes were identified in At. The decay pattern of one of the isomers suggests that it is based on the oblate-deformed 2f7/2 1i13/2 configuration, which confirms the expected onset of deformation in the At isotopes by approaching the neutron midshell at N=104.