Phys. Rev. Lett. 74, 1521–1524 (1995)10C Superallowed Branching Ratio and the Cabibbo-Kobayashi-Maskawa Matrix UnitarityReceived 7 October 1994; published in the issue dated 27 February 1995 A measurement of the superallowed 0+→0+ branching ratio in 10C performed with the 8π gamma-ray spectrometer is described. From the measured branching ratio, we extract a new precise value of Ft(10C) = 3076.7(6.0)s. This does not support previously suggested Z- or Z2-dependent corrections to the superallowed 0+→0+ data set, which removed the apparent nonunitarity of the Cabibbo-Kobayashi-Maskawa matrix. © 1995 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.74.1521
DOI:
10.1103/PhysRevLett.74.1521
PACS:
23.40.Bw, 12.15.Hh
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