@article{0a1b5e87ed6e4366aae068190130051d,
title = "High-precision half-life determination for Na 21 using a 4π gas-proportional counter",
abstract = "A high-precision half-life measurement for the superallowed β+ transition between the isospin T=1/2 mirror nuclei Na21 and Ne21 has been performed at the TRIUMF-ISAC radioactive ion beam facility yielding T1/2=22.4506(33) s, a result that is a factor of 4 more precise than the previous world-average half-life for Na21 and represents the single most precisely determined half-life for a transition between mirror nuclei to date. The contribution to the uncertainty in the Na21 Ftmirror value due to the half-life is now reduced to the level of the nuclear-structure-dependent theoretical corrections, leaving the branching ratio as the dominant experimental uncertainty.",
author = "P. Finlay and Laffoley, {A. T.} and Ball, {G. C.} and Bender, {P. C.} and Dunlop, {M. R.} and R. Dunlop and G. Hackman and Leslie, {J. R.} and Maclean, {A. D.} and D. Miller and M. Moukaddam and B. Olaizola and N. Severijns and Smith, {J. K.} and D. Southall and Svensson, {C. E.}",
note = "Funding Information: The authors would like to thank the GPS Collaboration and the TRIUMF-ISAC operators and target group. This work was supported by FWO-Vlaanderen (Belgium) and the Natural Sciences and Engineering Research Council of Canada (NSERC). C.E.S. acknowledges support from the Canada Research Chairs program. TRIUMF receives federal funding via a contribution agreement through the National Research Council of Canada (NRC). Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = aug,
day = "9",
doi = "10.1103/PhysRevC.96.025501",
language = "English (US)",
volume = "96",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "2",
}