Precise Half-Life Measurement of 34Ar, a Superallowed β+ Emitter

Details Precise Half-Life Measurement of 34Ar, a Superallowed β+ Emitter Precise Half-Life Measurement of 34Ar, a Superallowed β+ Emitter

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ennp.conf..387i&link_type=abstract

"EXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS . Proceedings of the Carpathian Summer School of Physics 2005 . Held 13-24 June

Astronomy and Astrophysics

Astrophysics

Scientific paper

We have measured the half-life of the superallowed 0+ → 0+ beta emitter 34Ar to 0.08% precision by observing decay positrons from both 34Ar and its daughter 34Cl. This is part of our program of precise measurements aimed at testing the Standard Model via the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. A new fitting technique was developed, which allowed us to extract the parent half-life to this precision. Our result is t1/2(34Ar) = 843.8(7) ms.

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