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Investigation of the Δn=0 selection rule in Gamow-Teller transitions: The β-decay of 207 Hg

Berry, T A; Podolyak, Zs.; Carroll, R.J.; Lică, R.; Grawe, H.; Timofeyuk, N.K.; Alexander, T; Andreyev, A.N.; Ansari, S.; Borge, M J G; Simpson, Edward


Gamow-Teller β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This requirement plays a major role in the β decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical r-process pathway below both (for ) and (for ). The level of forbiddenness of the g7/2 transition has been investigated from the decay of the ground state of 207Hg into the...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Physics Letters B
DOI: 10.1016/j.physletb.2019.04.039
Access Rights: Open Access


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