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Abstract
We have measured the half-life of \(^{14}\)O, a superallowed \((0^{+} \to 0^{+})\) \(\beta\)
decay isotope. The \(^{14}\)O was produced by the \(^{12}\)C(\(^{3}\)He,n)\(^{14}\)O reaction
using a carbon aerogel target. A low-energy ion beam of \(^{14}\)O was mass separated
and implanted in a thin beryllium foil. The beta particles were counted with plastic
scintillator detectors. We find \(t_{1/2} = 70.696\pm 0.052\) s. This result is \(1.5\sigma\)
higher than an average value from six earlier experiments, but agrees more closely
with the most recent previous measurement.