Experimental Proposal to Study β Decay Properties around N = 126Nuclei Produced by Multi‐Nucleon Transfer Reactions

The beta decay properties of the neutron-rich isotopes with neutron number N = 126, out of reach by any reaction well established so far, are very interesting from the astrophysical point of view. We will propose decay lifetime measurements with a new isotope separation system, which is supposed to separate a single species of the radioactive nuclei among target-like fragments produced via multi-nucleon transfer reactions in binary heavy ion collisions, by using a gas catcher cell combined with laser resonance ionization technique. The present proposal aims to measure beta decay properties of several nuclei around A similar to 200 with N = 126 and nearby nuclei by using a stable Xe-136 beam on a Pt-198 target.