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Synthesis, Decay Properties, and Identification of Superheavy Nuclei Produced in 48Ca-induced Reactions.
- Source :
-
AIP Conference Proceedings . 10/26/2007, Vol. 947 Issue 1, p269-276. 8p. 1 Diagram, 5 Graphs. - Publication Year :
- 2007
-
Abstract
- Thirty-four new nuclides with Z = 104–116, 118 and N = 161–177 have been synthesized in the complete-fusion reactions of 238U, 237Np, 242,244Pu, 243Am, 245,248Cm, and 249Cf targets with 48Ca beams. The masses of evaporation residues were identified through measurements of the excitation functions of the xn-evaporation channels and from cross bombardments. The decay properties of the new nuclei agree with those of previously known heavy nuclei and with predictions from different theoretical models. A discussion of self-consistent interpretations of all observed decay chains originating from the parent isotopes 282,283112, 282113, 286–289114, 287,288115, 290–293116, and 294118 is presented. Decay energies and lifetimes of the neutron-rich superheavy nuclei as well as their production cross sections indicate a considerable increase in the stability of nuclei with the approach to the theoretically predicted nuclear shells with N = 184 and Z = 114. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 947
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 27296848
- Full Text :
- https://doi.org/10.1063/1.2813815