Sharma, ShwetaBall, G. C.Bernier, Nikita2022-07-282022-07-282022Sharma, S. et al. (2022). High-precision half-life determination of 14O via direct β counting. The European Physical Journal A, 58, 83. https://doi.org/10.1140/epja/s10050-022-1434-601Xhttps://doi.org/10.1140/epja/s10050-022-00730-whttp://hdl.handle.net/10566/7646The half-life of the superallowed Fermi β+ emitter 14O was determined to high precision via a direct β counting experiment performed at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF. The result, T1/2( 14O) = 70619.2(76) ms, is consistent with, but is more precise than, the world average obtained from 11 previous measurements. Combining the 14O half-life deduced in the present work with the previous most precise measurements of this quantity leads to a reduction in the overall uncertainty, by nearly a factor of 2. The new world average is T1/2( 14O) = 70619.6(63) ms with a reduced χ2 value of 0.87 obtained from 8 degrees of freedom.enAstrophysicsPhysicsAstronomyScienceArticle