Abstract
Evaluated spectroscopic data and level schemes from radioactive decay and nuclear reaction studies are presented for 23N, 23O, 23F, 23Ne, 23Na, 23Mg, 23Al, and 23Si. This evaluation for A=23 supersedes the earlier one by R. B. Firestone (2007Fi02).Highlights of this evaluation are the following:The recommended absolute γ-ray emission probability (%Pγ) in the 23Ne β-decay was reported with 3.0% systematic uncertainty in 1986BrZQ. In 2007Fi02, the Pγ for the most intense γ ray was recommended with 4% uncertainty. These uncertainties are comparable with the total excited state β feeding uncertainty of 33 l, resulting from 100–67 l (g.s. β feeding) in 23Na (1963Ca06). In this evaluation, notes are added for relative and absolute γ-ray emission probabilities.From new measurements 2020Kw01 constrain the spin of the 7788 keV level, the dominant resonance state for the 22Na(p,γ)22Mg reaction rate at stellar temperature, in 23Mg to (3/2+,5/2+). Earlier assignment was 7/2+.The 23Al ε decay scheme appears to be incomplete. Some of the latest reported data on the 23Al ε decay study in the literature need verification.
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