6533b7d9fe1ef96bd126c038

RESEARCH PRODUCT

Search for Superheavy Elements in theU238+U238Reaction

W. BrüchleHeiko AhrensGünter HerrmannG. WirthK. SümmererP. PeuserG. TittelJ. V. KratzH. GäggelerNorbert TrautmannMatthias SchädelG. FranzH. FolgerM. Zendel

subject

Nuclear physicsPhysicsNuclear reactionchemistryFissionQ valueGeneral Physics and Astronomychemistry.chemical_elementSuperheavy ElementsUraniumSpontaneous fission

description

A search was made for spontaneously fissioning superheavy elements in damped collisions of two uranium nuclei. Different techniques were applied covering the elements 108 to 118 and approx. =126, and a half-life range from 1 ms to more than 1 yr. No evidence for superheavy elements was found at upper cross-section limits of 10/sup -32/, 10/sup -33/, and 10/sup -35/ cm/sup 2/ for half-lives from 1 to 100 ms, 100 ms to 1 d, and 1 d to 1 yr, respectively.

https://doi.org/10.1103/physrevlett.45.1824