Total absorption gamma-ray spectroscopy study of the β-decay of 186Hg

The Gamow-Teller strength distribution of the decay 186Hg into 186Au has been determined for first time using total absorption gamma spectroscopy technique and compared with theoretical QRPA calculations SLy4 Skyrme force. measured half-life are described by mixing oblate prolate configurations independently in parent daughter nuclei. In this framework best description experimental beta is obtained dominantly components both 186Au. approach also allowed us to determine an upper limit component state. complexity analysis required development a new X-ray gated spectrum.