Synthesis of Superheavy Nuclei in ^<48>Ca-Induced Reactions

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This paper presents results of experiments aimed at producing long-lived superheavy elements located near the spherical shells at Z ≥ 114 and N ≥ 172 in the reactions of neutron-rich isotopes ^<242, 244>Pu, ^<243>Am, ^<245, 248>Cm and ^<249>Cf with ^<48>Ca projectiles. The decay properties of the synthesized nuclei are consistent with the consecutive α-decays originating in the decays of parent nuclides ^<286, 287, 288, 289>114, ^<287, 288>115, ^<290, 291, 293>116 and ^<294>118 produced in the 2n- to 5n-evaporation channels. The present observations can be considered to be experimental evidence of the existence of the "island of stability" of superheavy elements.
2004-07-30

著者

MOODY K.
University of California, Lawrence Livermore National Laboratory
Itkis M.
Joint Institute For Nuclear Research
Moody K.
University Of California Lawrence Livermore National Laboratory
Polyakov A.
Joint Institute For Nuclear Research
Mezentsev A.
Joint Institute For Nuclear Research
Oganessian Y
Joint Institute For Nuclear Research
Patin J.
University Of California Lawrence Livermore National Laboratory
OGANESSIAN Yu.
Joint Institute for Nuclear Research
UTYONKOV V.
Joint Institute for Nuclear Research
LOBANOV Yu.
Joint Institute for Nuclear Research
ABDULLIN F.
Joint Institute for Nuclear Research
SHIROKOVSKY I.
Joint Institute for Nuclear Research
TSYGANOV Yu.
Joint Institute for Nuclear Research
GULBEKIAN G.
Joint Institute for Nuclear Research
BOGOMOLOV S.
Joint Institute for Nuclear Research
GIKAL B.
Joint Institute for Nuclear Research
ILIEV S.
Joint Institute for Nuclear Research
SUBBOTIN V.
Joint Institute for Nuclear Research
SUKHOV A.
Joint Institute for Nuclear Research
VOINOV A.
Joint Institute for Nuclear Research
BUKLANOV G.
Joint Institute for Nuclear Research
SUBOTIC K.
Joint Institute for Nuclear Research
ZAGREBAEV V.
Joint Institute for Nuclear Research
WILD J.
University of California, Lawrence Livermore National Laboratory
STOYER M.
University of California, Lawrence Livermore National Laboratory
STOYER N.
University of California, Lawrence Livermore National Laboratory
SHAUGHNESSY D.
University of California, Lawrence Livermore National Laboratory
KENNEALLY J.
University of California, Lawrence Livermore National Laboratory
LOUGHEED R.
University of California, Lawrence Livermore National Laboratory
Stoyer N.
University Of California Lawrence Livermore National Laboratory
Stoyer M.
University Of California Lawrence Livermore National Laboratory
Lougheed R.
University Of California Lawrence Livermore National Laboratory
Kenneally J.
University Of California Lawrence Livermore National Laboratory
Shaughnessy D.
University Of California Lawrence Livermore National Laboratory
Wild J.
University Of California Lawrence Livermore National Laboratory
PATIN J.
University of California, Lawrence Livermore National Laboratory

Synthesis of Superheavy Nuclei in ^<48>Ca-Induced Reactions

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