New Superheavy Element Isotopes: 242Pu(48Ca,5n)285114
作者： P. A. Ellison , K. E. Gregorich , J. S. Berryman , D. L. Bleuel , R. M. Clark
DOI: 10.1103/PHYSREVLETT.105.182701
关键词:
摘要: The new, neutron-deficient, superheavy element isotope {sup 285}114 was produced in 48}Ca irradiations of 242}Pu targets at a center-of-target beam energy 256 MeV (E* = 50 MeV). {alpha} decay followed by the sequential four daughter nuclides, 281}Cn, 277}Ds, 273}Hs, and 269}Sg. 265}Rf observed to spontaneous fission. measured {alpha}-decay Q values were compared with those from macroscopic-microscopic nuclear mass model give insight into shell effects. 242}Pu({sup 48}Ca,5n){sup cross section 0.6{sub -0.5}{sup +0.9} pb.
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