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Title: Competition between allowed and first-forbidden β decays and the r -process
β − decay lifetimes are essential ingredients for r -process yield calculations. In N≈126 r -process waiting point nuclei first-forbidden and allowed β decays are expected to compete. Recent experiments performed at CERN/ISOLDE showed that 207,208 Hg decay predominantly via first-forbidden decays. In addition, following on a high statistics study of the β + / EC decay of 208 At, it is suggested that the Z>82, N<126 nuclei provide an excellent testing ground for global calculations addressing the competition between first-forbidden and allowed β decays.  more » « less
Award ID(s):
Author(s) / Creator(s):
Liu, W.; Wang, Y.; Guo, B.; Tang, X.; Zeng, S.
Date Published:
Journal Name:
EPJ Web of Conferences
Page Range / eLocation ID:
Medium: X
Sponsoring Org:
National Science Foundation
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