Study of the 242 Pu + 48 Ca Reaction at Super Heavy Element Factory

D. Ibadullayev, V. K. Utyonkov,Yu. Ts. Oganessian,F. Sh. Abdullin, S. N. Dmitriev,M. G. Itkis,A. V. Karpov, N. D. Kovrizhnykh, D. A. Kuznetsov, O. V. Petrushkin, A. V. Podshibiakin,A. N. Polyakov,A. G. Popeko, R. N. Sagaidak, L. Schlattauer, V. D. Shubin, M. V. Shumeiko, D. I. Solovyev,Yu. S. Tsyganov,A. A. Voinov, V. G. Subbotin,A. Yu. Bodrov, A. V. Sabel’nikov,Sh. G. Giniyatova, K. A. Kuterbekov

Bulletin of the Russian Academy of Sciences: Physics（2023）

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摘要

Experiments on the synthesis of isotopes of element 114 in the 242 Pu + 48 Ca reaction were carried out at a new gas-filled separator DGFRS-2 online to the DC-280 cyclotron of the Superheavy Element Factory at the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research. The decay properties of 286 Fl and 287 Fl, as well as their α-decay products, were refined. The possibility of the existence of isomeric states in successive α-decays of 287 Fl is discussed. The maximum cross section of 10.4_ - 2.1^ + 3.5 pb was measured for the 242 Pu( 48 Ca, 3 n ) 287 Fl reaction.

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