Physics Letters B (Aug 2021)
Total absorption gamma-ray spectroscopy study of the β-decay of 186Hg
- A. Algora,
- E. Ganioğlu,
- P. Sarriguren,
- V. Guadilla,
- L.M. Fraile,
- E. Nácher,
- B. Rubio,
- J.L. Tain,
- J. Agramunt,
- W. Gelletly,
- J.A. Briz,
- R.B. Cakirli,
- M. Fallot,
- D. Jordán,
- Z. Halász,
- I. Kuti,
- A. Montaner,
- A. Onillon,
- S.E.A. Orrigo,
- A. Perez Cerdan,
- S. Rice,
- V. Vedia,
- E. Valencia
Affiliations
- A. Algora
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain; Institute of Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary; Corresponding author at: Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain.
- E. Ganioğlu
- Department of Physics, Istanbul University, Istanbul 34134, Turkey; Corresponding author.
- P. Sarriguren
- Instituto de Estructura de la Materia, CSIC, E-28006, Madrid, Spain
- V. Guadilla
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain; Faculty of Physics, University of Warsaw, 02-093, Warsaw, Poland
- L.M. Fraile
- Grupo de Física Nuclear & IPARCOS, Univ. Complutense, Grupo de Física Nuclear, CEI Moncloa, E-28040, Madrid, Spain
- E. Nácher
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain; Instituto de Estructura de la Materia, CSIC, E-28006, Madrid, Spain
- B. Rubio
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- J.L. Tain
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- J. Agramunt
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- W. Gelletly
- Department of Physics, University of Surrey, GU2 7XH, Guildford, UK
- J.A. Briz
- Instituto de Estructura de la Materia, CSIC, E-28006, Madrid, Spain; Subatech, IMT-Atlantique, Univ. de Nantes, CNRS-IN2P3, F-44307, Nantes, France
- R.B. Cakirli
- Department of Physics, Istanbul University, Istanbul 34134, Turkey
- M. Fallot
- Subatech, IMT-Atlantique, Univ. de Nantes, CNRS-IN2P3, F-44307, Nantes, France
- D. Jordán
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- Z. Halász
- Institute of Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
- I. Kuti
- Institute of Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
- A. Montaner
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- A. Onillon
- Subatech, IMT-Atlantique, Univ. de Nantes, CNRS-IN2P3, F-44307, Nantes, France
- S.E.A. Orrigo
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- A. Perez Cerdan
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- S. Rice
- Department of Physics, University of Surrey, GU2 7XH, Guildford, UK
- V. Vedia
- Grupo de Física Nuclear & IPARCOS, Univ. Complutense, Grupo de Física Nuclear, CEI Moncloa, E-28040, Madrid, Spain
- E. Valencia
- Instituto de Física Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia, Spain
- Journal volume & issue
-
Vol. 819
p. 136438
Abstract
The Gamow-Teller strength distribution of the decay of 186Hg into 186Au 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 186Hg and daughter 186Au. 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.
