PT Journal
AU Algora, A
   Ganioglu, E
   Sarriguren, P
   Guadilla, V
   Fraile, LM
   Nacher, E
   Rubio, B
   Tain, JL
   Agramunt, J
   Gelletly, W
   Briz, JA
   Cakirli, RB
   Fallot, M
   Jordan, D
   Halasz, Z
   Kuti, I
   Montaner, A
   Onillon, A
   Orrigo, SEA
   Cerdan, AP
   Rice, S
   Vedia, V
   Valencia, E
TI Total absorption gamma-ray spectroscopy study of the beta-decay of Hg-186
SO Physics Letters B
JI Phys. Lett. B
PY 2021
BP 136438
EP 7pp
VL 819
DI 10.1016/j.physletb.2021.136438
LA English
DE Betadecay; Totalabsorption spectroscopy; Shape coexistence
AB The Gamow-Teller strength distribution of the decay of Hg-186 into Au-186 has been determined for the first time using the total absorption gamma spectroscopy technique and has been compared with theoretical QRPA calculations using the SLy4 Skyrme force. The measured Gamow-Teller strength distribution and the half-life are described by mixing oblate and prolate configurations independently in the parent and daughter nuclei. In this theoretical framework the best description of the experimental beta strength is obtained with dominantly prolate components for both parent Hg-186 and daughter Au-186. The approach also allowed us to determine an upper limit of the oblate component in the parent state. The complexity of the analysis required the development of a new approach in the analysis of the X-ray gated total absorption spectrum.
ER