Elsevier

Nuclear Physics A

Volume 496, Issue 3, 5 June 1989, Pages 429-445
Nuclear Physics A

Superallowed 42Sc(β+)42Ca decay

https://doi.org/10.1016/0375-9474(89)90069-9Get rights and content

Abstract

The neutron-separation energy of 42Ca and the proton-separation energy of 42Sc have been measured accurately via the 41Ca(n, γ)42Ca and 41Ca(p, γ)42Sc reaction, respectively. The measured values imply a Q-value of 6425.92 ± 0.19 keV for the total β-decay energy of 42Sc. If the conserved vector-current hypothesis is valid and the electromagnetic corrections are made properly, the ƒt values of superallowed 0+ → 0+ β-decays should all be the same. The ft values for the superallowed 42Sc and 14O decays were found to be equal to better than 13 ± 18 parts in 104, in agreement with the expectations.

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