The β decay of the N = 127 isotone 206Au has been investigated at the Gesellschaft für Schwerionenforschung laboratory within the rare isotope investigations at GSI Collaboration. From the experimental data, both its half-life and the level structure of the N = 126 daughter nucleus 206Hg have been extracted. On the basis of the new results, the systematics of Au β-decay half-lives beyond the N = 126 shell closure is discussed. In addition, the interplay between allowed Gamow-Teller and first-forbidden transitions in the N > 126, Z < 82 mass region is reviewed.
First measurement of the β-decay half-life of 206Au / A.I. Morales Lopez, G. Benzoni, N. Al Dahan, S. Vergani, Z. Podolyák, P.H. Regan, T.P.D. Swan, J.J. Valiente Dobón, A. Bracco, P. Boutachkov, F.C.L. Crespi, J. Gerl, M. Górska, S. Pietri, P.M. Walker, H.J. Wollersheim. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - 111:5(2015 Sep), pp. 52001.1-52001.6. [10.1209/0295-5075/111/52001]
First measurement of the β-decay half-life of 206Au
A.I. Morales LopezPrimo
;A. Bracco;F.C.L. Crespi;
2015
Abstract
The β decay of the N = 127 isotone 206Au has been investigated at the Gesellschaft für Schwerionenforschung laboratory within the rare isotope investigations at GSI Collaboration. From the experimental data, both its half-life and the level structure of the N = 126 daughter nucleus 206Hg have been extracted. On the basis of the new results, the systematics of Au β-decay half-lives beyond the N = 126 shell closure is discussed. In addition, the interplay between allowed Gamow-Teller and first-forbidden transitions in the N > 126, Z < 82 mass region is reviewed.File | Dimensione | Formato | |
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