Level structures of212Rn have been studied by in-beamγ-ray spectroscopic methods using the209Bi(6Li,3n)212Rn reaction at beam energies of 28, 30, and 34 MeV. A number of new nonyrast states based onπh49/2andπh39/2f7/2configurations have been identified. A 3(−)collective state is also proposed at 2121 keV, which ismost likely formed by mixing the octupole vibration with the 3−member of theπh39/2i13/2multiplet. The levelscheme is compared with large-scale shell model calculations and discussed in terms of excitations of valenceprotons and without contributions from the208Pb core. An overall excellent agreement is obtained for states thatcan be described in this model space.
New level scheme and shell model description of Rn212
Zhang, G. X.;Mengoni, D.;Testov, D.;Mazzocco, M.;Gozzelino, A.;Parascandolo, C.;La Commara, M.;Recchia, F.;
2020
Abstract
Level structures of212Rn have been studied by in-beamγ-ray spectroscopic methods using the209Bi(6Li,3n)212Rn reaction at beam energies of 28, 30, and 34 MeV. A number of new nonyrast states based onπh49/2andπh39/2f7/2configurations have been identified. A 3(−)collective state is also proposed at 2121 keV, which ismost likely formed by mixing the octupole vibration with the 3−member of theπh39/2i13/2multiplet. The levelscheme is compared with large-scale shell model calculations and discussed in terms of excitations of valenceprotons and without contributions from the208Pb core. An overall excellent agreement is obtained for states thatcan be described in this model space.Pubblicazioni consigliate
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