First measurement of the β-decay half-life of 206Au. (10th September 2015)

• Record Type: Journal Article
• Authors: Morales, A. I.; Benzoni, G.; Al-Dahan, N.; Vergani, S.; Podolyák, Zs.; Regan, P. H.; Swan, T. P. D.; Valiente-Dobón, J. J.; Bracco, A.; Boutachkov, P.; Crespi, F. C. L.; Gerl, J.; Górska, M.; Pietri, S.; Walker, P. M.; Wollersheim, H.-J.
• Is Part Of: Europhysics letters. Volume 111:Number 5(2015:Sep.)
• Publication Date: 2015-09-10
• Subjects: 23.40.-s -- 26.30.Hj -- 27.80.+w; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1209/0295-5075/111/52001
• Languages: English
• ISSNs: 0295-5075

Abstract

Abstract: The β decay of the N = 127 isotone 206 Au 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 206 Hg 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.