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Chemical investigation of hassium (element 108)
Evidence that the chemical properties of hassium and its lighter homologue osmium are similar is provided, thus confirming that hassio exhibits properties as expected from its position in group 8 of the periodic table.
48Ca+249Bk fusion reaction leading to element Z = 117: long-lived α-decaying 270Db and discovery of 266Lr.
The superheavy element with atomic number Z=117 was produced as an evaporation residue in the (48)Ca+(249)Bk fusion reaction at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany and a hitherto unknown α-decay branch in (270)Db was observed, which populated the new isotope (266)Lr.
Chemical properties of the transactinide elements studied in liquid phase with SISAK
Abstract.This article starts with a review of the current SISAK liquid-liquid extraction system, as used after the physical preseparator BGS at LBNL for chemical studies of transactinide elements.
248Cm(22Ne,xn)27-xSg reaction and the decay properties of 265Sg reexamined
Recent studies of the hot fusion reaction 248 Cm( 26 Mg,xn) 274-x Hs have provided new nuclear decay data on 265,266 Sg and confirmed the existence of an isomeric state in 261 Rf. The results
Synthesis and detection of a seaborgium carbonyl complex
A gas-phase carbonylation technique previously tested on short-lived molybdenum and tungsten isotopes was applied to the preparation of a carbonyl complex of seaborgium, the 106th element, and it was concluded that hexacarbonyl Sg(CO)6 was the most likely structural formula.
Spectroscopy of element 115 decay chains.
For the first time, precise spectroscopy allows the derivation of excitation schemes of isotopes along the decay chains starting with elements Z>112.
On the decay properties of 269Hs and indications for the new nuclide 270Hs
Abstract.In bombardments of 248Cm with 143.7-146.8 MeV 26Mg ions the nuclides 269Hs and presumably 270Hs were produced. After chemical isolation, Hs atoms were identified by observing genetically
The Electron Capture $$^{163}$$163Ho Experiment ECHo
The determination of the absolute scale of the neutrino masses is one of the most challenging present questions in particle physics. The most stringent limit, $$m(\bar{\nu }_{\mathrm {e}})<
Mechanisms Suppressing Superheavy Element Yields in Cold Fusion Reactions.
The energy dependence of P_{CN} indicates that cold fusion reactions (involving ^{208}Pb) are not driven by a diffusion process, and that superheavy elements formed in fusion reactions which are hindered by fast nonequilibrium processes are formed.