• Publications
  • Influence
Nuclear Forensic Analysis
Energy splitting of the ground-state doublet in the nucleus 229Th.
The energy splitting of the 229Th ground-state doublet is measured to be 7.6+/-0.5 eV, significantly greater than earlier measurements. Gamma rays produced following the alpha decay of 233U (105
Synthesis of a new element with atomic number Z = 117.
The measured decay properties show a strong rise of stability for heavier isotopes with Z > or = 111, validating the concept of the long sought island of enhanced stability for superheavy nuclei.
Improved Value for the Energy Splitting of the Ground-State Doublet in the Nucleus 229mTh
We have made an improved estimate of the {sup 229m}Th isomer energy. The new value, 7.8(5) eV, includes an estimate of possible spectral contamination effects due to the out-of-band E2 transition
Production and Decay of the Heaviest Nuclei
Yu. Ts. Oganessian,* F. Sh. Abdullin, C. Alexander, J. Binder, R. A. Boll, S. N. Dmitriev, J. Ezold, K. Felker, J.M. Gostic, R.K. Grzywacz, J. H. Hamilton, R. A. Henderson, M.G. Itkis, K. Miernik, D.
Synthesis of Superheavy Elements
The Island of Stability of spherical superheavy nuclides exists at the extreme limit of the Chart of the Nuclides, beyond regions of nuclear stability associated with deformed nuclear shapes. In this
Review of even element super-heavy nuclei and search for element 120
Abstract.The reaction 54Cr$ + $248Cm was investigated at the velocity filter SHIP at GSI, Darmstadt, with the intention to study production and decay properties of isotopes of element 120. Three
Measurements of cross sections for the fusion-evaporation reactions 244 Pu ( 48 Ca ,xn ) 292-x 114 and 245 Cm ( 48 Ca ,xn ) 293-x 116
We have studied the excitation functions of the reactions $^{244}\mathrm{Pu}$($^{48}\mathrm{Ca}$,$xn$). Maximum cross sections for the evaporation of 3--5 neutrons in the complete-fusion reaction
Synthesis of Superheavy Nuclei in the {sup 48}Ca + {number_sign}{sup 244}Pu Reaction
In bombardment of {sup 244}Pu with {sup 48}Ca , we observed a decay sequence consisting of an implanted heavy atom, three subsequent {alpha} decays, and a spontaneous fission (SF), all correlated in