Search for a New Isomeric State in the 186Re Nucleus

Resumo

An experimental search for a new low-energy isomer in the ¹⁸⁶Re nucleus was carried out. The existence of such an isomer was recently proposed to explain the results from experiments on the stimulated de-excitation in the laser plasma of the familiar ^186mRe isomer with energy E* = 149 keV and a half-life of 2 × 10⁵ years. The experimental result corresponds to this assumption but requires further confirmation and refinement.